Antenna Info

FCC ID: RI7XE61

Operational Description

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FCCID_2058737

ANTENNA REQUIREMENT Standard Applicable: For intentional device, according to FCC 47 CFR Section 15.203, “an intentional radiator shall be designed to ensure that no antenna other than that furnished by the responsible party shall be used with the device”. And according to FCC 47 CFR Section 15.247(b), “if transmitting antennas of directional gain greater than 5dBi are used, the conducted output power from the intentional radiator shall be reduced by the amount in dB that the directional gain of the antenna exceeds 6dBi”. Antenna Connected Construction: The additional or alternative antenna used in this radio modular is taoglas, ceramic patch antenna WPC25A with MMCX connector, a mini-coax cable for connectivity and a PCB carrier to mount the antenna. The maximum gain of the antenna is 5dBi. (See the attached for details)

INTEGRATION ANTENNA REPORT FOR ALCONLABS DEVICE Passive Testing VERSION DATE PAGE DESCRIPTION CENTRE APPROVED WPC25 Antenna A 07/03/2012 All San Diego Eleazar Zuniga Integration Report This is an unpublished work and may contain legally privileged, confidential or private information. Any unauthorized use, reproduction, dissemination, distribution or other disclosure of the contents is strictly prohibited. All copyrights, trademarks and any other intellectual property rights related are owned by Taoglas Group Holding Limited. Address:Taoglas USA, Inc., 8375 Camino Santa Fe, Suite A, San Diego, CA 92121, USA Telephone:+1.858.450.0888 Web:www.taoglas.com Email:nasales@taoglas.com Copyright © 2012

TABLE OF CONTENTS I. INTRODUCTION…………………….………….………………………………………………………………………………….3 II. BASIC ANTENNA REQUIREMENTS………………………………….………………………………………..……………3 III. FIRST ANALYSIS OF THE DEVICE…………………………………………………..……………………..……………….4 IV. TEST SETUP…………...…………….……………………………………………………………………………………………..5 V. ANTENNA PERFORMANCE…………………………………………………….…………………….…...………….………5 VI. CONCLUSIONS.....…...…..………..…………………………………………………………………………...................8 Address: Taoglas USA, Inc., 8375 Camino Santa Fe, Suite A, San Diego, CA 92121, USA Telephone:+1.858.450.0888 Web:www.taoglas.com Email:nasales@taoglas.com Copyright © 2012

I. INTRODUCCION Taoglas has been asked to integrate the WPC25A Wi‐Fi patch antenna using a MMCX connector to work specifically for AlconLabs device in the enclosure specifically designed for the product and made of materials required by the application. II. BASIC ANTENNA REQUIREMENTS 1. Frequency: 2400‐2500 MHz ISM band 2. Return Losses: ‐10 dB or less from 2400 to 2500 MHz 3. Efficiency: Approximately 50 % from 2400 to 2500 MHz The efficiency must be considered as an important issue for power consumption, long life time for the battery and functionality of the device itself. The efficiency of an antenna measures how much power is converted into electromagnetic waves, translating this in a better signal reception with higher signal‐to‐noise ratio. This reduces the number of dropped connections and improves the ability of the system to support fast data transfer rates and decreased power consumption. 4. The size and shape of the WPC25A Wi‐Fi patch antenna must conform into the existing enclosure of the AlconLabs device. Address: Taoglas USA, Inc., 8375 Camino Santa Fe, Suite A, San Diego, CA 92121, USA Telephone:+1.858.450.0888 Web:www.taoglas.com Email:nasales@taoglas.com Copyright © 2012

III. FIRST ANALYSIS OF THE DEVICE The AlconLabs device was send to Taoglas to be tested in passive mode, using the WPC25A patch antenna with MMCX connector. The antenna is connected with a mini‐coax cable with MMCX to U.FL transitions in order to connect the antenna to the module. Figure 1 shows the antenna allocation and figure 2, shows the antenna with the min‐coax cable. Figure 1. Antenna allocation in the AlconLabs device Figure 2. WP25A with the mini-coax cable with MMCX to U.FL transition Address: Taoglas USA, Inc., 8375 Camino Santa Fe, Suite A, San Diego, CA 92121, USA Telephone:+1.858.450.0888 Web:www.taoglas.com Email:nasales@taoglas.com Copyright © 2012

IV. TEST SET UP Z X Y Figure 3. Impedance measurements (left), peak gain efficiency, radiation pattern (right) V. ANTENNA PERFORMANCE V.1. Return Loss Figure 4. Return loss of the WPC25A Wi-Fi patch antenna. Address: Taoglas USA, Inc., 8375 Camino Santa Fe, Suite A, San Diego, CA 92121, USA Telephone:+1.858.450.0888 Web:www.taoglas.com Email:nasales@taoglas.com Copyright © 2012

V.2. VSWR Figure 5. VSWR of the WPC25A Wi-Fi patch antenna. V.3. Efficiency Figure 6.Efficiency of the WPC25A Wi-Fi patch antenna. Address: Taoglas USA, Inc., 8375 Camino Santa Fe, Suite A, San Diego, CA 92121, USA Telephone:+1.858.450.0888 Web:www.taoglas.com Email:nasales@taoglas.com Copyright © 2012

V.4. Peak Gain Figure 7.Peak Gain of the WPC25A Wi-Fi patch antenna. V.5. Radiation Pattern Figure 8. Radiation Pattern at 2400MHz of the WPC25A Wi-Fi patch antenna. Address: Taoglas USA, Inc., 8375 Camino Santa Fe, Suite A, San Diego, CA 92121, USA Telephone:+1.858.450.0888 Web:www.taoglas.com Email:nasales@taoglas.com Copyright © 2012

VI. CONCLUSIONS Taoglas has been designed a PC board with MMCX connector to integrate the WLP25, the board was designed especially for the AlconLabs device. Base on the Return Loss, VSWR and efficiency the antenna is working with excellent performance. Due the WLP25 is a patch antenna can work attached to a metal. In order to tune the antenna with the new board and connector an inductor of 3nH in parallel needS to be added to the PCB board. Figure 8. WLP25 patch antenna Address: Taoglas USA, Inc., 8375 Camino Santa Fe, Suite A, San Diego, CA 92121, USA Telephone:+1.858.450.0888 Web:www.taoglas.com Email:nasales@taoglas.com Copyright © 2012

Figure 9. PCB board Figure 10. MMCX connector Address: Taoglas USA, Inc., 8375 Camino Santa Fe, Suite A, San Diego, CA 92121, USA Telephone:+1.858.450.0888 Web:www.taoglas.com Email:nasales@taoglas.com Copyright © 2012


Document Created: 2013-08-20 13:37:28
Document Modified: 2013-08-20 13:37:28
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