Regents of the University of California

0684-EX-ST-2006

Status: Grant Expired Due to New License

WC9XYA
2007-07-03

Documents and Communications: [refresh]

Description	Category	Date
E-Mail generated [Jun 29, 2007]	Correspondence	2007-06-29
Incoming generated [Jun 29, 2007]	Correspondence	2007-06-29
Test Site Locations	Images	2006-09-08
Description of System Test Sites	Text Documents	2006-09-27
Directional Antenna Emission Information	Text Documents	2006-09-08
Directional Antenna and Radio Emission specifications for Transmitter	Text Documents	2006-09-27

Application Form:

OET Special Temporary Authority Report

FEDERAL COMMUNICATIONS COMMISSION
APPLICATION FOR SPECIAL TEMPORARY AUTHORITY

Applicant Name

Name of Applicant:

Regents of the University of California

Address

Attention:	Connie Geraghty
Street Address:	1111 Franklin Street
P.O. Box:
City:	Oakland
State:	CA
Zip Code:	94607
Country:
E-Mail Address:	[email protected]

Best Contact

Give the following information of person who can best handle inquiries pertaining to this application:
Last Name: Ananthasubramaniam
First Name: Bharath
Title: Reseacher
Phone Number: 805-893-5201

Explanation

Please explain in the area below why an STA is necessary:
The use of a highly directional high gain antenna operating in the unlicensed 57-64 GHz band is desired as part of prototype to realize a communication link between RF-ID like cheap wireless sensors and the base station, which are both the transmitter and ultimate receiver. The proposed transceiver exceeds the radio emission limits specified in Part 15.255 of the FCC rules and regulations, therefore requiring a STA for experimentation during development of the prototype. However, care will be taken to prevent any humans entering the regions of principal radiation by maintaining the emission levels below those specified in Bulletin 65.

Purpose of Operation

Please explain the purpose of operation:

Testing a communication link between wireless RF-ID sensors and a base station. We have proposed a novel architecture for data extraction from a network of low-power sensors with limited communication and computation capabilities that we term an Imaging Sensor Net. Unlike in conventional multihop sensor to sensor communication, the sensors communicate directly with the collector/base station node using a line of sight channel. Since the origin of the sensed data is critical in many applications, this architecture utilizes a radar-like round trip delay estimation to additionally locate the sensors. The collector node transmits a RF beacon, which is a long aperiodic pseudorandom noise sequence to initiate the communication using a highly directional high gain antenna. The sensors that are illuminated by the beacon electronically reflect the collector nodes beacon, modulating the return with low rate data and frequency translation to avoid backscatter or ground return. The collector proceeds to sweep the entire field with overlapping illuminations of sensors. The received signals from these multiple illuminations are then jointly processed using techniques similar to Synthetic Aperture Radar Processing to extract the data, and locations of the corresponding sensors. The 60GHz millimeter wave band was chosen for this prototype, since there is unlicensed bandwidth available and also at this frequency, multipath effects are at a minimum due to significant attenuation during reflections, which is desired to make the delay estimation algorithm accurate. We consider two possible architectures for the sensors - one in which the sensor reflects the beacon with no gain(similar to RF-ID sensors) at the sensor and the other, where the sensor amplifies the signal before reflection. In the RF-ID like sensors, the collector node must provide enough power in the beacon in order to compensate for the attenuation in both the down and up links, which necessitates large transmit powers at the collector.

Information

Callsign:	WC9XYA
Class of Station:	MO
Nature of Service:	Experimental

Requested Period of Operation

Operation Start Date:	09/01/2006
Operation End Date:	02/28/2007

Manufacturer

Manufacturer	Model Number	No. Of Units	Experimental
List below transmitting equipment to be installed (if experimental, so state) if additional rows are required, please submit equipment list as an exhibit:
Cernex Cassegrain Tx & Rx Antennas	CCG15507540-XX	2	No
Quinstar Power Amplifier Tx	QPW-50662028-00	1	No
Quinstar Tx Bandpass Filter	QFB-6103V0	1	No
Spacek-Labs LNA Rx	SL625-35-5W	1	No

Certification

Neither the applicant nor any other party to the application is subject to a denial of Federal benefits that includes FCC benefits pursuant to Section 5301 of the Anti-Drug Abuse Act of 1988, 21 U.S.C. Section 862, because of a conviction for possession or distribution of a controlled substance. The applicant hereby waives any claim to the use of any particular frequency or electromagnetic spectrum as against the regulatory power of the United States because of the prvious use of the same, whether by license or otherwise, and requests authorization in accordance with this application. (See Section 304 of the Communications Act of 1934, as amended.) The applicant acknowledges that all statements made in this application and attached exhibits are considered material representations, and that all the exhibits part hereof and are incorporated herein as if set out in full in this application; undersigned certifies that all statements in this application are true, complete and correct to the best of his/her knowledge and belief and are made in good faith. Applicant certifies that construction of the station would NOT be an action which is likely to have a significant environmental effect. See the Commission's Rules, 47 CFR1.1301-1.1319.

Signature of Applicant (Authorized person filing form):	Bharath Ananthasubramaniam
Title of Applicant (if any):	Researcher
Date:	2006-09-08 00:00:00.0

Station Location

	City	State	Latitude	Longitude	Mobile	Radius of Operation
	Santa Barbara	California	North 34 24 56	West 119 50 28	In the vicinity of the Engineering Sciences building	0.05

Datum: NAD 83
Is a directional antenna (other than radar) used? Yes
Exhibit submitted: Yes
(a) Width of beam in degrees at the half-power point:
(b) Orientation in horizontal plane:
(c) Orientation in vertical plane:
Will the antenna extend more than 6 meters above the ground, or if mounted on an existing building, will it extend more than 6 meters above the building, or will the proposed antenna be mounted on an existing structure other than a building? No
(a) Overall height above ground to tip of antenna in meters:
(b) Elevation of ground at antenna site above mean sea level in meters:
(c) Distance to nearest aircraft landing area in kilometers:
(d) List any natural formations of existing man-made structures (hills, trees, water tanks, towers, etc.) which, in the opinion of the applicant, would tend to shield the antenna from aircraft:

Action	Frequency	Station Class	Output Power/ERP	Mean Peak	Frequency Tolerance (+/-)	Emission Designator	Modulating Signal
New	59.00000000-62.00000000 GHz	MO	200.000000 mW 2.000000 kW	P	0.00001667 %	100MG1D	Pseudo-Noise Sequence

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