PCS.55.M

## AS ~ a“ > \ TAOGLAS. 

+ 5 Qd om Y) (© +) (O C) 

**Part No: PCS.55.M** 

**Description** 

Small OTS LTE Antenna 600-3000 MHz 

**Features:** 

Small form factor 

SMD Dielectric Antenna 5G/4G/LTE: 600-3000MHz GPS / GLONASS / Galileo / BeiDou (1561-1602MHz) 

Available in North America (NA), European Union (EMEA), and World Wide (WW) configurations 

Dimensions: 27*10*1.6mm 

RoHS & REACH Compliant 

SPE-23-8-281-A 

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**----- Start of picture text -----**<br>
1. Introduction  2<br>2. Specifications  3<br>3. Antenna Characteristics  6<br>4. Radiation Patterns  9<br>5. Mechanical Drawing  46<br>6. Packaging  47<br>7. Antenna Integration Guide  48<br>8. Application Note  59<br>9 Solder Reflow Profile  69<br>Changelog  70<br>**----- End of picture text -----**<br>


Taoglas makes no warranties based on the accuracy or completeness of the contents of this document and reserves the right to make changes to specifications and product descriptions at any time without notice. Taoglas reserves all rights to this document and the information contained herein. Reproduction, use or disclosure to third parties without express permission is strictly prohibited. 

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The PCS.55.M, is a patent pending compact cellular antenna designed specifically for IoT devices with small ground planes. It combines revolutionary antenna design techniques with the antenna integration experience of Taoglas to provide a solution for wideband coverage of both 5G/4G LTE and GNSS bands, including the most challenging 600700MHz bands. 

The PCS.55.M provides a simple off-the-shelf solution for LTE, LTE CAT-M, NB-IoT, & GNSS applications. At only 27x10x1.6mm, this compact cellular antenna is the perfect antenna for small IoT devices, where requirements for smaller PCB design are becoming more dependent on the antenna size. This antenna also has a relatively small keepout area compared to most other compact cellular antennas that are on the market, owing to Taoglas' years of antenna design expertise. 

Typical Applications include: 

- Handheld IoT Devices - Handsets and Tablets - Compact Asset Trackers 

The PCS.55.M is available in three matching configurations. The optimum components for North America (NA), European Union (EU), and World Wide (WW) have been determined to allow designers to easily integrate the PCS.55.M to get the best  performance for any particular deployment scenario. The PCS.55.M is easy to integrate using standard SMD technologies and the matching circuits for each deployment (NA, EMEA, or WW) have been simplified to a 3 component configuration to allow for greater flexibility on the user side. 

Many antennas advertise a small form factor but with the hidden cost of implementing a large PCB ground plane. At Taoglas, we believe that the whole antenna system (antenna + ground plane) needs to be small to meet the evolving demands of the IoT market. As a result, we have performed experimental ground plane studies in order to be fully transparent on the effect of small ground planes on antenna performance. This allows our customers to have full visibility on how our antennas will perform on various different ground plane sizes. The data for these studies is shown in the Application Note on page 59. For further information or, integration and matching guidelines contact your regional Taoglas customer support team. 

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|**Electrical**|**Electrical**|**Electrical**|**Electrical**|**Electrical**|**Electrical**|**Electrical**|**Electrical**|**Electrical**|**Electrical**|**Electrical**|
|---|---|---|---|---|---|---|---|---|---|---|
|**Band**|Frequency<br>(MHz)|Measurement|Measurement<br>Efficiency (%)|Average Gain<br>(dB)|Peak Gain<br>(dBi)|Return Loss<br>(dB)|Impedance|Polarization|Radiation<br>Pattern|Max Input<br>Power|
|**5GNR**<br>**Band71**|617-698|NA|17.9|-7.5|-4.4|-2.5|50 Ω|Linear|Omni|2W|
|||EMEA|9.1|-10.4|-7.3|-2.5|||||
|||WW|23.9|-6.2|-3.3|-4.7|||||
|**5GNR/4G**<br>**Band 12,17,28,29,85**|698-746|NA|47.4|-3.2|0.2|-8.5|||||
|||EMEA|23.3|-6.3|-2.7|-4.1|||||
|||WW|31.2|-5.1|-1.6|-3.7|||||
|**5GNR/4G**<br>**Band 13,14,20,28**|746-800|NA|41.7|-3.8|-0.3|-5.1|||||
|||EMEA|31.1|-5.1|-1.5|-4.4|||||
|||WW|31.7|-5.0|-1.5|-3.3|||||
|**5GNR/4G**<br>**Band**<br>**5,18,19,20,26,27**|800-880|NA|27.4|-5.6|-2.2|-3.1|||||
|||EMEA|35.6|-4.5|-1.0|-5.0|||||
|||WW|32.6|-4.9|-1.6|-4.1|||||
|**5GNR/4G**<br>**Band 5,8,19,26**|880-960|NA|16.1|-7.9|-4.4|-2.6|||||
|||EMEA|26.6|-5.7|-1.8|-5.6|||||
|||WW|23.6|-6.3|-2.6|-4.3|||||
|**5GNR/4G**<br>**Band 74,75,76**|1427-1518|NA|32.9|-4.8|0.4|-4.7|||||
|||EMEA|24.8|-6.1|-1.0|-3.1|||||
|||WW|31.9|-5.0|0.4|-5.0|||||
|**GNSS**|1560-1602|NA|43.3|-3.6|1.2|-5.9|||||
|||EMEA|35.2|-4.5|0.7|-4.7|||||
|||WW|43.3|-3.6|1.6|-6.3|||||
|**4G/3G**<br>**Band**<br>**1,2,3,4,25,39,66**|1710-2155|NA|46.6|-3.3|3.7|-6.3|||||
|||EMEA|47.4|-3.2|3.3|-6.6|||||
|||WW|43.0|-3.7|3.5|-5.9|||||
|**4G/3G**<br>**Band 7, 38, 41, 69**|2500-2690|NA|14.7|-8.3|-2.0|-1.8|||||
|||EMEA|20.9|-6.8|-0.4|-2.2|||||
|||WW|18.6|-7.3|0.0|-2.2|||||



The PCS.55.M antenna performance was measured with Taoglas PCSD.55.A EVB. 

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||**Mechanical**|
|---|---|
|Antenna Dimensions|27 x 10 x 1.6mm|
|Material|FR4|
|Weight|0.9g|
|Soldering Type|SMD|



||**Environmental**|
|---|---|
|Operation Temperature|-40°C ~ +85°C|
|Storage Temperature|-40°C ~ +85°C|
|Moisture Sensitivity Level|3|



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|||**5G/4G Bands**|**5G/4G Bands**|**5G/4G Bands**||
|---|---|---|---|---|---|
|**Band Number**||**5GNR/ FR1/ LTE/ LTE-Advanced/ WCDMA/ HSPA/ HSPA+/ TD-SCDMA**||||
||**Uplink**|**Downlink**|**EMEA**|**NA**|**WW**|
|**B1**|1920 to 1980|2110 to 2170|✓|✓|✓|
|**B2**|1850 to 1910|1930 to 1990|✓|✓|✓|
|**B3**|1710 to 1785|1805 to 1880|✓|✓|✓|
|**B4**|1710 to 1755|2110 to 2155|✓|✓|✓|
|**B5**|824 to 849|869 to 894|✓|✓|✓|
|**B7**|2500 to 2570|2620 to 2690|✓||✓|
|**B8**|880 to 915|925 to 960|✓|✓|✓|
|**B9**|1749.9 to 1784.9|1844.9 to 1879.9|✓|✓|✓|
|**B11**|1427.9 to 1447.9|1475.9 to 1495.9|✓|✓|✓|
|**B12**|699 to 716|729 to 746||✓|✓|
|**B13**|777 to 787|746 to 756|✓|✓|✓|
|**B14**|788 to 798|758 to 768|✓|✓|✓|
|**B17**|704 to 716|734 to 746||✓|✓|
|**B18**|815 to 830|860 to 875|✓|✓|✓|
|**B19**|830 to 845|875 to 890|✓|✓|✓|
|**B20**|832 to 862|791 to 821|✓|✓|✓|
|**B21**|1447.9 to 1462.9|1495.9 to 1510.9|✓|✓|✓|
|**B22**|3410 to 3490|3510 to 3590||||
|**B23**|2000 to 2020|2180 to 2200|✓|✓|✓|
|**B24**|1626.5 to 1660.5|1525 to 1559|✓|✓|✓|
|**B25**|1850 to 1915|1930 to 1995|✓|✓|✓|
|**B26**|814 to 849|859 to 894|✓|✓|✓|
|**B27**|807 to 824|852 to 869|✓|✓|✓|
|**B28**|703 to 748|758 to 803|✓|✓|✓|
|**B29**|717 t|o 728|✓|✓|✓|
|**B30**|2305 to 2315|2350 to 2360|✓|✓|✓|
|**B31**|452.5 to 457.5|462.5 to 467.5||||
|**B32**|1452 t|o 1496|✓|✓|✓|
|**B34**|2010 t|o 2025|✓|✓|✓|
|**B35**|1850 t|o 1910|✓|✓|✓|
|**B36**|1930 t|o 1990|✓|✓|✓|
|**B37**|1910 t|o 1930|✓|✓|✓|
|**B38**|2570 t|o 2620|✓||✓|
|**B39**|1880 t|o 1920|✓|✓|✓|
|**B40**|2300 t|o 2400|✓|✓|✓|
|**B41**|2496 t|o 2690|✓||✓|
|**B42**|3400 t|o 3600||||
|**B43**|3600 t|o 3800||||
|**B45**|1447 t|o 1467|✓|✓|✓|
|**B46**|5150 t|o 5925||||
|**B47**|5855 t|o 5925||||
|**B48**|3550 t|o 3700||||
|**B49**|3550 t|o 3700||||
|**B50**|1432 t|o 1517|✓|✓|✓|
|**B51**|1427 t|o 1432|✓|✓|✓|
|**B52**|3300 t|o 3400||||
|**B53**|2483.5|to 2495|✓||✓|
|**B65**|1920 to 2010|2110 to 2200|✓|✓|✓|
|**B66**|1710 to 1780|2110 to 2200|✓|✓|✓|
|**B68**|698 to 728|753 to 783|✓|✓|✓|
|**B69**|2570 t|o 2620|✓||✓|
|**B70**|1695 to 1710|1995 to 2020|✓|✓|✓|
|**B71**|663 to 698|617 to 652|||✓|
|**B72**|451 to 456|461 to 466||||
|**B73**|450 to 455|460 to 465||||
|**B74**|1427 to 1470|1475 to 1518|✓|✓|✓|
|**B75**|1432 t|o 1517|✓|✓|✓|
|**B76**|1427 t|o 1432|✓|✓|✓|
|**B77**|3300 t|o 4200||||
|**B78**|3300 t|o 3800||||
|**B79**|4400 t|o 5000||||
|**B85**|698 to 716|728 to 746||✓|✓|
|**B87**|410 to 415|420 to 425||||
|**B88**|412 to 417|422 to 427||||



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## Return Loss 

## VSWR 

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## **3.3** Efficiency ff 

## **3.4** Average Gain ff 

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## **3.5** Peak Gain | 

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## Test Setup 

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## EMEA Patterns at 650 MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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## NA Patterns at 650 MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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## WW Patterns at 650 MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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## EMEA Patterns at 700 MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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## NA Patterns at 700 MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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## WW Patterns at 700 MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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## EMEA Patterns at 850 MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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## NA Patterns at 850 MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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## WW Patterns at 850 MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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## EMEA Patterns at 900 MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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## NA Patterns at 900 MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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## WW Patterns at 900 MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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## EMEA Patterns at 960 MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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## NA Patterns at 960 MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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## WW Patterns at 960 MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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## EMEA Patterns at 1450 MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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## NA Patterns at 1450 MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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## WW Patterns at 1450 MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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## EMEA Patterns at 1575 MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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## NA Patterns at 1575 MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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## WW Patterns at 1575 MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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## EMEA Patterns at 1710 MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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## NA Patterns at 1710 MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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## WW Patterns at 1710 MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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## EMEA Patterns at 1850 MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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## NA Patterns at 1850 MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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## WW Patterns at 1850 MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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## EMEA Patterns at 1910 MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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## NA Patterns at 1910 MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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## WW Patterns at 1910 MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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## EMEA Patterns at 2155 MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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## NA Patterns at 2155 MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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## WW Patterns at 2155 MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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## EMEA Patterns at 2700 MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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## NA Patterns at 2700 MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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## WW Patterns at 2700 MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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## **7.1** Schematic and Symbol Definition ay 

The circuit symbol for the antenna is shown below. The antenna has 5 pins with only two pins (Pin 1 and Pin 2) as functional. Pins 3, 4 and 5 are for mechanical strength. 

|**Pin**<br>~~i~~|**Description**<br>~~i~~|
|---|---|
|1|RF Feed|
|2|Ground|
|3, 4, 5|Mechanical, Not Connected|



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## Antenna Integration 

For any given PCB size, the antenna should ideally be placed on the PCB’s shortest side, to take advantage of the ground plane. Optimized matching components can be placed as shown. 

## PCB Layout - NA 

The footprint and clearance on the PCB must meet the layout drawing in section (Footprint Drawing). Note the placement of the optimized components. L1 is placed as close as possible to the RF feed (pad 1) within the copper keep out area. C1 is then placed tightly in series with C2 placed in parallel after that. 

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## PCB Layout - EMEA 

The footprint and clearance on the PCB must meet the layout drawing in section (Footprint Drawing). Note the placement of the optimized components. C1 is placed as close as possible to the RF feed (pad 1) across the copper keep out area. L1 is then placed tightly in parallel with C2 placed in series after that. 

## PCB Layout - WW 

The footprint and clearance on the PCB must meet the layout drawing in section (Footprint Drawing). Note the placement of the optimized components. L1 is placed as close as possible to the RF feed (pad 1) within the copper keep out area. C1 is then placed tightly in series with L2 placed in parallel after that. 

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## PCB Clearance 

Below shows the antenna footprint and clearance through ALL layers on the PCB. Only the antenna pads and connections to feed and GND are present within this clearance area (marked RED). The clearance area extends to 5.4mm from the antenna pads to the ground area. This clearance area includes the bottom side and ALL internal layers on the PCB. 

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## Evaluation Board 

. 

30mm 

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**----- Start of picture text -----**<br>
120mm<br>**----- End of picture text -----**<br>


Topside 

Bottom Side 

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## Evaluation Board Ground Plane Length 

Ground Plane Length: 103.8mm 

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## **7.9** Matching Circuit - NA eed 

Matching components with the PCS.55.M are recommended for the antenna to have optimal performance on the evaluation board, located in the spaces specified in the above images. Additional matching components may be necessary for your device, so we recommend incorporating extra component footprints, forming a “pi” network, between the cellular module and the edge of the ground plane. 

|**Designator**|**Type**|**Value**|**Manufacturer**|**Manufacturer Part Number**|
|---|---|---|---|---|
|L1|Inductor|8.2nH|Murata|LQG15HS8N2G02D|
|C1|Capacitor|2.7pF|Murata|GCM1555C1H2R7BA16D|
|C2|Capacitor|0.5pF|Murata|GRM1555C1HR50CA01D|



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## Matching Circuit - EMEA 

Matching components with the PCS.55.M are recommended for the antenna to have optimal performance on the evaluation board, located in the spaces specified in the above images. Additional matching components may be necessary for your device, so we recommend incorporating extra component footprints, forming a “pi” network, between the cellular module and the edge of the ground plane. 

|**Designator**<br>L1|**Type**<br>Inductor|**Value**<br>10nH|**Manufacturer**<br>TDK|**Manufacturer Part Number**<br>MLK1005S10NJT000|
|---|---|---|---|---|
|C1|Capacitor|4.3pF|Murata|GJM1555C1H4R3BB01D|
|C2|Capacitor|3.3pF|Murata|GJM1555C1H3R3BB01D|



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## **7.11** Matching Circuit - WW ones 

Matching components with the PCS.55.M are recommended for the antenna to have optimal performance on the evaluation board, located in the spaces specified in the above images. Additional matching components may be necessary for your device, so we recommend incorporating extra component footprints, forming a “pi” network, between the cellular module and the edge of the ground plane. 

|**Designator**<br>L1|**Type**<br>Inductor|**Value**<br>10nH|**Manufacturer**<br>Murata|**Manufacturer Part Number**<br>MLK1005S10NJT000|
|---|---|---|---|---|
|L2|Inductor|15nH|Murata|MLK1005S15NJT000|
|C1|Capacitor|2.2pF|Murata|GRM1555C1H2R2CA01D|



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## Footprint 

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The effect of shortening the ground plane on antenna performance was evaluated. Using the evaluation board of the PCS.55.M, the PCB was cut back 10mm at a time and tested in an anechoic chamber. The results for North America (NA), Europe, Middle East, Africa (EMEA), and Worldwide (WW) are shown here: 

## Efficiency – North America 

## Average Gain – North America 

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## **8.3** Peak Gain – North America | 

## **8.4** Efficiency – EMEA ff 

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## **8.5** Average Gain – EMEA ay 

## **8.6** Peak Gain – EMEA es 

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## **8.7** Efficiency – Worldwide ff 

## **8.8** Average Gain – Worldwide ay 

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## Peak Gain – Worldwide 

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## Effects of Right Side PCB Ground on Antenna Performance 

The PCS.55.M antenna was tuned for a 120x80mm ground plane and the distance between the PCB ground on the right side of the antenna was parameterized and swept from 0 to 50 mm. The minimum condition, or 0mm, has the ground right up against the antenna and the maximum condition, or 50mm, has no ground on the right side of the antenna (i.e. a full 80x16mm keep out area). This was done in order to determine the minimum distance that the ground can be placed next to the antenna without affecting performance. The configuration with 25mm is shown below. 

For minimal (0.2 dB) performance impact, a clearance of 25mm is recommended. Return loss and efficiency 25, 35 and 50mm clearance are shown below: 

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## Return Loss 

## **8.10.2** Efficiency 

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## **8.10.3** Return Loss 

For more compact designs, a distance of 5 or 10mm can be implemented at the cost of efficiency and bandwidth as shown below: 

## Efficiency 

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## **8.11** Correlation of CST Blackbox Model to Measured Results 

To evaluate the accuracy of the CST Blackbox Model available to all customers, the following comparisons of return loss and efficiency have been made: 

Please note the following simulated results were run at 18 cells/wavelength and with a -80 dB accuracy criterion. The measured results are for the PCS.55.M evaluation board with the NA tuning in place. 

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## Repeatability Study 

In order to verify the repeatability of the design, 20 production samples of the evaluation board for the PCS.55.M were tested in an anechoic chamber on the same day with standard SMA torque of 1 N ⋅ m 

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The PCS.55.M can be assembled by following the recommended soldering temperatures are as follows: 

- *Temperatures listed within a tolerance of +/- 10º C 

The PCS.55.M is not limited to the number of passes through the reflow process. Smaller components are typically mounted on the first pass, however, we do advise mounting the PCS.55.M when placing larger components on the board during subsequent reflows. 

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Changelog for the datasheet 

**SPE-23-8-281 – PCS.55.M** 

## **Revision: A (First Release)** 

Date: 2023-09-28 Changes: Initial Release Changes Made by: Gary West 

## **Previous Revisions** 

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