Antenna Registration Question 4 Directional Antena Information

0971-EX-CN-2018 Text Documents

Systems & Technology Research

2018-12-04ELS_220645

Radar Development and Testing on Government Contract
RE: Antenna Registration Q4: Directional Antenna Information, Exhibit
File Number: 0971-EX-CN-2018
Confirmation Number: EL392490
Date: December 4, 2018

Experiment Overview
Systems & Technology Research (STR) is leading efforts on the DARPA radar
development project called “Radar Net.” We are supporting a Phase 2 development
effort.

This phase will involve performance testing of our radar system. A maximum of two
aircraft will be outfitted with systems and simultaneously operating in the same
region with identical radar equipment. Both systems will employ identically
constructed phased array antennas. Refer to file number 0935-EX-CN-2018 for
more information on the radar systems.

To support this effort, we require multi-node data communications between two
aircraft and two ground-based nodes. The aircraft will contain the radar systems,
and telemetry and position data will be shared between the systems and the ground
nodes using MANET data radios made by Trellisware, Inc.

We are asking for a 10 MHz (minimum) bandwidth in the 2300 – 2400 MHz band,
and an additional 10 MHz bandwidth in the 2400 – 2500 MHz band. This is to
support testing in the expected higher background noise regime of the 2400-2500
MHz ISM, as well as the lower expected background noise between 2300 – 2400
MHz.

The preferred bandwidth to be assigned is 20 MHz, however a 10 MHz wide
assignment is acceptable if necessary for deconfliction.

Any assigned band(s) can vary between the specific geographic regions being
requested (i.e. they do not all have to be the same for MA, TX, MI, and FL), as the
radios are tunable.

This effort will be expected to begin in January, 2019, and extend for up to 24
months or contract end. The primary area of operation will be in the Boston, MA
region, with occasional operations in the other areas.

For all computations we consider the highest desired bandwidth and ERP of the
systems.

Antenna Parameters:
We are asking to use several systems, each outfitted with antennas.


               600 W. Cummings Park, Suite 6500, Woburn MA 01801 www.stresearch.com


The two airborne systems will be outfitted with vertical polarized omni-directional
azimuthal antennas. These are Haigh-Farr 6130-6 blade antennas, rated between
2.20 – 2.50 GHz. The antenna will be mounted to the bottom of the aircraft. The
gains are approximately 0dBi in azimuth, and between -5 dBi and +5 dBi for
elevations between the horizon and the ground, with a peak of +5 dBi at a 20°
depression angle between the horizon and ground. The datasheet with the
corresponding antenna patterns for this antenna is attached.

There will be a ground-based receiver/transmitter outfitted with a sectoral antenna.
This is to enable high data rate data communications between the airborne
platforms that are between 10 - 40 km away from this antenna. The antenna
selected is a Laird SA24-120-16-WB. It has a 120° azimuth and 9° elevation 3 dB
beamwidth. It will be mounted to a temporary tripod/mast, of up to 6m (18 ft) in
height, the objective being to get above any treeline obstructions and maintain line
of sight to the aircraft. The boresight elevation angle from the horizon will be
manually raised between 6.5° - 11.5° to support an aircraft flight envelope between
2.0° and 15.3° during testing. Any use near proximity to airports will comply with
FAA and local airport regulations for proximity (and therefore height) to their
facility.

Additionally, a second ground-based antenna will be utilized. It will use a vertically
polarized, 360° omnidirectional azimuth whip halfwave dipole antenna, Trellisware
TW-1161, with a 1 dBi maximum gain, between 675– 2600 MHz. The vertical
beamwidth is 70° - 90° depending on frequency. It will be mounted to a temporary
tripod/mast, of up to 6m (18 ft) in height, the objective being to get above any
treeline obstructions and maintain line of sight to the other ground node. The data
for this antenna is attached in the Trellisware 1494 appendix, page 11.

Connected to each antenna is a MANET data radio made by Trellisware, model TW-
950. These are tunable radios, with a maximum transmit power of 2W. The
modulation waveform is a CPM waveform. The Trellisware 1494 for this system is
attached.

Power Parameters:
The MANET radio’s peak transmit power is 2 Watts.

For the airborne antenna, the maximum transmit gain is 5 dB, therefore the peak
ERP is 2 * 3.16 = 6.3W.

For the ground based node with sectoral antenna, the maximum transmit gain is 16
dB, or a factor of 39.8, therefore the peak ERP is 2 * 39.8 = 79.6 W.

For the ground based node with halfwave dipole antenna, the maximum transmit
gain is 1 dB, or a factor of 1.26, therefore the peak ERP is 2 * 1.26 = 2.5 W.


              600 W. Cummings Park, Suite 6500, Woburn MA 01801 www.stresearch.com


Operations / Flight Routes:
Flights are currently planned for the Boston, MA area primarily near Lawrence, MA (KWLM)
but at times extending south to operations near Cape Cod CGAS (KFMH) and north to
Portsmouth Intl (KPSM). These locations will be where a majority of the flight operations
will occur, not continuously, but rather as discrete test events during the execution of the
contract.

Additionally, other flight operations near and surrounding North Texas Regional Airport
(KGYI), Ann Arbor, MI and Ypsilanti (KYIP) and Hunstville, AL will be conducted.

A nominal flight altitude of 8500 ft MSL is planned, but could vary from 4500 ft to 9,000 ft
MSL depending on weather conditions and VMC minimum requirements.



                                            Air Node 1 w/ Omni
                                                   Blade
                                              6.3 W max ERP


                                                                                   Ground Node w/
                                                                                       Sectoral
     Air Node 2 w/ Omni                                                                Antenna
            Blade                                                                  79.6 W max ERP
        6.3W max ERP
                                                                                   18 ft
                                                                                   AGL
                      Ground Node w/                           6.5° - 11.5°
                                                                                   max
                                                                pointing
                      Omni Halfwave
                                                            elevation above
                           Dipole                                ground
                       2.5 W max ERP
                       33 ft AGL max




                600 W. Cummings Park, Suite 6500, Woburn MA 01801 www.stresearch.com


                                                                                                    BLADE ANTENNAS


  The Haigh-Farr family of rugged Blade
  antennas is available in frequencies ranging
  from UHF to upper C-band, and may be
  provided in either straight or rounded blade
  configurations.


  These blade antennas exhibit quasi-uniform
  null-free hemispherical patterns.


  These antennas have demonstrated proven
  reliability in over 30 years of high-
  performance airborne applications.


  Blade antennas are also used extensively in
                                                      FEATURES:
                                                           • Hemispherical Coverage (see patterns on next pages)
  ground-based vehicles such as race cars,
                                                           • Frequencies from UHF to C-Band
  trucks, tanks, and motorcycles, to name a                • Small, Compact Footprint
  few.                                                     • Aerodynamic Design
                                                           • Common Footprint for All Models
                                                           • Built to Withstand Extreme Shock & Vibration Environments


                                                      APPLICATIONS:
                                                           • Data Links, Telemetry, Transponder
                                                           • Aircraft
                                                           • UAVs
                                                           • Helicopters
                                                           • Tactical Missiles
                                                           • Ships
                                                           • Ground-Based Vehicles
                                                           • Single or Array Implementations with Matching Power Dividers and Cables




DESIGN CAPABILITY:
Haigh-Farr has more than 50 years history of designing and producing exceptionally rugged, high- performance antennas. If you don’t
find an antenna meeting your requirements in our standard list of products, Haigh-Farr has the experience and modeling capability to
customize a solution. Adaptations of existing designs can be done with very short lead times. Contact Haigh-Farr for a review of your
antenna requirements.




                                                                                                                  Rev 1 01/18 approved for release


                                                                                                  BLADE ANTENNAS


                                                                                                                  Weight
           Round         Straight       Frequency        VSWR             5KW¹        PEAK²         Height
                                                                                                                 (SMA) OZ
         Blade P/N      Blade P/N       Range GHz      MAX/TYPICAL      ALTITUDE     POWER       Inches [mm]
                                                                                                                  [grams]
           6107           6007         1.060 ± .030     2.0:1/1.50:1      116         160 W      2.30 [58.4]     1.0 [28.3]
           6108           6008        0.9165 ± .025     2.0:1/1.50:1      116         160 W      2.30 [58.4]     1.0 [28.3]
           6109           6009          1.35 – 1.54     2.0:1/1.50:1      116         160 W      1.75 [44.3]      0.9 [26]
           6110           6010          1.43 – 1.54     1.5:1/1.25:1      116         160 W      1.68 [42.7]      0.8 [23]
          6110-2         6010-2       1.425 – 1.525     1.5:1/1.25:1      116         160 W      1.68 [42.7]      0.8 [23]
          6110-3         6010-3         1.45 – 1.65     2.0:1/1.50:1      116         160 W      1.68 [42.7]      0.8 [23]
          6110-4         6010-4         1.50 – 1.80     2.0:1/1.50:1      116         160 W      1.68 [42.7]      0.8 [23]
           6115           6015          1.60 – 1.70     1.5:1/1.25:1      116         160 W      1.54 [39.1]      0.8 [23]
           6120           6020          1.71 – 1.85     1.5:1/1.25:1      114         240 W      1.45 [36.8]      0.8 [23]
           6125           6025          2.00 – 2.10     1.5:1/1.25:1      110         350 W      1.19 [30.2]      0.7 [20]
          6125-1         6025-1         2.00 – 2.30     2.0:1/1.50:1      110         350 W      1.19 [30.2]      0.7 [20]
           6130           6030          2.20 – 2.30     1.5:1/1.25:1      110         350 W      1.19 [30.2]      0.7 [20]
          6130-1         6030-1         2.30 – 2.40     1.5:1/1.25:1      110         350 W      1.19 [30.2]      0.7 [20]
          6130-2         6030-2         2.40 – 2.50     1.5:1/1.25:1      110         350 W      1.19 [30.2]      0.7 [20]
          6130-3         6030-3         2.20 – 2.40     1.5:1/1.25:1      110         350 W      1.19 [30.2]      0.7 [20]
          6130-4         6030-4         2.30 – 2.50     1.5:1/1.25:1      110         350 W      1.19 [30.2]      0.7 [20]
          6130-6         6030-6         2.20 – 2.50     1.75:1/1.50:1     110         350 W      1.19 [30.2]      0.7 [20]
          6135-1         6035-1         3.10 – 3.30     1.5:1/1.25:1      106         350 W      1.19 [30.2]      0.7 [20]
          6135-2         6035-2         3.45 – 3.55     1.5:1/1.25:1      106         350 W      1.19 [30.2]      0.7 [20]
          6135-3         6035-3         3.65 – 3.85     1.5:1/1.25:1      106         350 W      1.19 [30.2]      0.7 [20]
           6140           6040          4.50 – 5.00     1.5:1/1.25:1      104        1.5 kW      0.90 [22.9]      0.6 [17]
          6140-1         6040-1         4.40 – 5.50     1.5:1/1.25:1      104        1.5 kW      0.90 [22.9]      0.6 [17]
           6150           6050          5.40 – 5.90     1.5:1/1.25:1      102        2.2 kW      0.75 [19.1]      0.6 [17]
          6150-1         6050-1         5.25 – 5.85     1.5:1/1.25:1      102        2.2 kW      0.75 [19.1]      0.6 [17]
          6150-2         6050-2         6.40 – 6.60     1.5:1/1.25:1      102        2.2 kW      0.75 [19.1]      0.6 [17]
          6150-3         6050-3         6.40 – 7.20     1.5:1/1.25:1      102        2.2 kW      0.75 [19.1]      0.6 [17]

                       • Thermal environments: -50°C to 150°C; 300°C Transient
                       • Polarization: Linear, predominately vertical
                       • Connector: SMA (50 Ω Standard; TNC (50 Ω Optional)
                       • Required Mounting Screws: 82⁰ Flathead #4 Standard; 100⁰ Flathead #4 or M3 optional
                       • UHF models are available in different configurations
                       • Mechanical outline drawings are available upon request

¹ The 5kW altitude (k ft) is the approximate altitude at which the antenna will experience external corona with 5kW peak power.
² Peak power indicates the maximum power that may be radiated without experiencing external corona at any altitude. Sufficient
airflow is required at the higher power levels. These antennas handle average power in the 25-30W CW range but sufficient airflow is
required at these higher power levels for the antennas to perform properly. A static ground test will not provide the adequate airflow
required. Haigh-Farr offers both a 60XX and 61XX High Power version of all the above listed blades. These are manufactured with
Ultem material and have been tested at 100W CW at 70°C for 60 minutes without any issues.


Note: Haigh-Farr Rounded Blades (61XX) are identical in performance to our Straight Blades (60XX). We recommend the use of
Round Blades for applications where safety concerns exist.
                                                                                                                Rev 1 01/18 approved for release


                                                                                                   BLADE ANTENNAS



                                                                                                 0 dBi
                                                                                              (5 dB/div)




                                                                                                  0 dBi
                                                                                               (5 dB/div)




Note: The patterns shown above were measured with model 6130 on a cylindrical ground plane but are typical of the other Blades
used. Fins and other protrusions on the vehicle will perturb the radiation pattern. The extent of any perturbations cannot be fully
determined until radiation patterns are either calculated or measured on a model of the vehicle. Haigh-Farr offers engineering
services, which include the calculation of radiation patterns on a specific vehicle.                              Rev 1 01/18 approved for release


                                                                                                                                                                                             B
                                                                                       Vertically Polarized Sector Antennas


                                              2300-2700 MHZ VERTICALLY POLARIZED BASE STATION SECTOR ANTENNA
                                              The 60deg, 90deg and 120deg vertically polarized base station sector antenna systems offered by Laird
                                              Technologies are constructed of UV stable fiber glass radomes. The 45deg sector has a UV Stable ASA plastic
                                              radome. The radome construction gives long service life under the most demanding conditions. The antennas are
                                              constructed using corrosion resistant metal elements and a unique air dielectric system which are more stable than
                                              PCB based antenna systems because they don’t absorb moisture, which can degrade the performance of PCB based
                                              antenna systems. The sectors come with a stainless steel scissor bracket mounting system for ease of installation
                                              and alignment.

                                              RES                                                                                                                      MARKETS
                                              •    Vertically polarized wide band performance                                                                      •    WiMAX applications
                                              •    45, 60, 90, and 120 deg models with gains from 16dBi to 20dBi                                                   •    Base station antennas
                                              •    Type N female integrated connector                                                                              •    802.11b and 802.11g wireless systems
                                              •    Extremely rugged for long service life in extreme environments                                                  •    Point to multi-point systems
                                              •    Weatherproof                                                                                                    •    Broadband wireless access
                                                                                                                                                                   •    MMDS applications

                                                  PARAMETER                              SA24-45-20-WB                       SA24-60-17-WB                       SA24-90-17-WB                       SA24-120-16-WB
                                                  Frequency range                        2300 - 2700 MHz                     2300 - 2700 MHz                     2300 - 2700 MHz                     2300 - 2700 MHz
                                                  VSWR                                   1.5:1                               1.5:1                               1.5:1                               1.5:1
                                                  Impedance                              50 ohm                              50 ohm                              50 ohm                              50 ohm
                                                  Input power                            50W                                 50W                                 50W                                 50W
                                                  Pole diameter (OD)                     1”- 2” (25-50mm)                    1”- 2” (25-50mm)                    1”- 2” (25-50mm)                    1”- 2” (25-50mm)
                                                  Temperature                            -40°C to +70°C                      -40°C to +70°C                      -40°C to +70°C                      -40°C to +70°C
                                                  Gain                                   20 dBi                              17 dBi                              17 dBi                              16 dBi
                                                  Horizontal beamwidth                   45°                                 60°                                 90°                                 120°
                                                  Vertical beamwidth                     7°                                  8°                                  7°                                  9°
                                                  Front-to-back                          25 dB                               25 dB                               20 dB                               21 dB
                                                  Mechanical downtilt                    30°                                 30°                                 30°                                 30°
                                                  Weight                                 8.4 lbs (3.8 kg)                    6.6 lbs (3 kg)                      6.6 lbs (3 kg)                      6.6 lbs (3 kg)
                                                                                         34” x 7” x 3.5”                     33.5” x 6.5” x 2.5”                 33.5” x 6.5” x 2.5”                 33.5” x 6.5” x 2.5”
                                                  Dimensions (L x W x H)
                                                                                         (864 x 178 x 89mm)                  (851 x 165 x 64mm)                  (851 x 165 x 64mm)                  (851 x 165 x 64mm)


                                              Wind loading

                                               odel                in             mph                   mph                 radialIAL ice
                                               SA24 WB             247            61.8 lb               96.5 lb             62 lb


                                                                              45deg 20dBi 2300-2700MHz VPOL sector antenna
                                                                              60deg 17dBi 2300-2700MHz VPOL sector antenna
                                                                              90deg 17dBi 2300-2700MHz VPOL sector antenna
                                                                              120deg 16dBi 2300-2700MHz VPOL sector antenna

                                                                                                                                                                                            Typical azimuth and
                                                                                                                                                                                             elevation pattern
                                                                                                                                                                                              SA24-90-17-WB




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Document Created: 2018-12-04 20:45:22
Document Modified: 2018-12-04 20:45:22

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