WCM.01.0151W

## **SPECIFICATION** 

Part No. : **WCM.01.0151W** Product Name: : 2.4GHz Button Antenna Features : Smallest External Wi-Fi/Bluetooth Antenna 2dBi˜5dBi Peak Gain Dims: 19.8*14.3*16.4mm 2400MHz to 2500MHz Antenna Wi-Fi/Bluetooth 60%+ Efficiency RP SMA(M) Connector IP67 Housing Omnidirectional ROHS Compliant *Gain varies depending on ground-plane size 

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## **1. Introduction** 

The WCM.01w 2.4GHz antenna is the smallest RP-SMA(M) external antenna in the market, fitting into spaces other traditional monopole, dipole or rubber ducky antenna cannot go. A unique PIFA design ensures omnidirectional gain across 2.4GHz to 2.5GHz ensuring constant reception and transmission to make it a great antenna for 2.4GHz Wi-Fi and Bluetooth applications. 

This antenna features greater than 60% efficiency when connected directly to the ground plane of the device. 

Typical Applications 

- Application Points 

- Routers 

- IoT M2M devices 

- Smart Home applications 

This antenna comes with an RP SMA(M) to be compatible with most Wi-Fi applications and routers in the market. The WCM.01 antenna housing is also IP67 water resistant. The antenna should be mounted on the edge of the main PCB ground-plane of the device. Due to its monopole design, relatively larger ground-planes will increase the efficiency and peak gain of the antenna. 

The ideal position for the antenna to radiate is mounted clear of metal housings. Connector is customizable subject to minimum order quantities and possible NRE. 

Contact your Taoglas regional sales office for more information. 

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## **2. Specification** 

|ELECTRICAL<br>~~Pd~~|ELECTRICAL<br>~~Pd~~|ELECTRICAL<br>~~Pd~~|ELECTRICAL<br>~~Pd~~|ELECTRICAL<br>~~Pd~~|
|---|---|---|---|---|
|Frequency (MHz)<br>~~Pd~~<br>~~ee~~||2400<br>~~Pd~~<br>~~ee~~|2450<br>~~Pd~~<br>~~ee~~|2500<br>~~Pd~~<br>~~ee~~|
|**Efficiency (%)**<br>~~ee~~|||||
|In free space||33.30|30.36|29.65|
|On the 10*10cm|Ground plane(center edge)|63.43|71.44|66.85|
|On the 10*10cm|Ground plane(off center edge)|55.85|68.43|61.73|
|On the 20*20cm|Ground plane(center edge)|64.20|71.40|63.97|
|On the 20*20cm|Groundplane(off center edge)|62.55|81.30|69.73|
|On the 30*30cm|Ground plane(center edge)|58.31|70.49|60.87|
|On the 30*30cm|Ground plane(off center edge)|62.11|73.46|61.90|
|**Average Gain(dBi)**|||||
|In free space||-4.78|-5.18|-5.28|
|On the 10*10cm|Ground plane(center edge)|-1.98|-1.46|-1.75|
|On the 10*10cm|Ground plane(off center edge)|-2.53|-1.65|-2.10|
|On the 20*20cm|Groundplane(center)|-1.92|-1.46|-1.94|
|On the 20*20cm|Ground plane(off center edge)|-2.04|-0.90|-1.57|
|On the 30*30cm|Ground plane(center edge)|-2.34|-1.52|-2.16|
|On the 30*30cm|Groundplane(off center edge)|-2.07|-1.34|-2.08|
|**Peak Gain(dBi)**|||||
|In free space||0.89|0.40|0.12|
|On the 10*10cm|Groundplane(center edge)|2.02|2.45|2.37|
|On the 10*10cm|Ground plane(off ceter edge)|3.46|4.09|3.47|
|On the 20*20cm|Ground plane(center edge)|4.26|4.54|3.69|
|On the 20*20cm|Groundplane(off center edge)|4.02|5.40|4.65|
|On the 30*30cm|Ground plane(center edge)|3.64|4.85|4.06|
|On the 30*30cm|Groundplane(off center edge)|3.79|4.23|3.15|
|Radiation|Omnidirectional||||
|Polarization|Linear||||
|Impedance|50Ω||||
|Max Input Power|10W||||
|MECHANICAL<br>~~a~~|||||
|Antenna Dimension|19.8*14.3*16.4mm||||
|Casing|ABS||||
|Connector|RP-SMA(M)||||
|Weight|6g||||
|Ingress Protection<br>Rating|IP67 (Housing only)||||



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|Operation Temperature|-40°C ~ + 85°C|
|---|---|
|Storage Temperature|-40°C ~ + 85°C|
|Humidity|Non-condensing 65°C 95% RH|



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## **3. Antenna Characteristics** 

## **3.1 Testing Setup** 

a) In free space 

d) With 20*20cm ground plane center edge 

b) With 10*10cm ground plane center edge 

e) With 20*20cm f) With 30*30cm ground plane off ground plane center center edge edge 

c) With 10*10cm ground plane off center edge 

g) With 30*30cm ground plane off center edge 

**Figure.1** Antenna Measurement Setup 

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## 3.2 Return Loss (In free space) 

**Figure 2.** Return loss of WCM.01 antenna 

## **3.3 Return Loss(On ground plane center edge)** 

**Figure 3.** Return loss of WCM.01 antenna with different ground plane size 

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## **3.4 Return Loss (On ground plane off center edge)** 

**Figure 4.** Return loss of WCM.01 antenna with different ground plane size 

## **3.5 Efficiency (In free space)** 

**Figure 5.** Efficiency of WCM.01 antenna 

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## **3.6 Efficiency (On ground plane center edge)** 

**Figure 6.** Return loss of WCM.01 antenna with different ground plane size 

**3.7 Efficiency (On ground plane off center edge)** 

**Figure 7.** Return loss of WCM.01 antenna with different ground plane size 

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## **3.8 Peak Gain (In free space)** 

**Figure 8.** Peak gain of WCM.01 antenna with different ground plane size 

## **3.9 Peak Gain (On ground plane center edge)** 

**Figure 9.** Peak gain of WCM.01 antenna with different ground plane size 

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## **3.10 Peak Gain (On ground plane off center edge)** 

**Figure 10.** Peak gain of WCM.01 antenna with different ground plane size 

## **3.11 Average Gain (In free space)** 

**Figure 11.** Average gain of WCM.01 

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## **3.12 Average Gain (On ground plane center edge)** 

**Figure 12.** Average gain of WCM.01 antenna with different ground plane size 

## **3.13 Average Gain (On ground plane off center edge)** 

**Figure 13.** Average gain of WCM.01 antenna with different ground plane size 

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## **4. Antenna Radiation Patterns** 

The antenna radiation patterns were measured in a CTIA certified ETS Anechoic Chamber. The measurement setup is shown below. 

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Y<br>X<br>Z<br>In Free Space<br>**----- End of picture text -----**<br>


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Y<br>Y<br>X<br>X<br>— pe Z<br>Z<br>aanwe \ ae<br>On 10*10cm ground plane (Off<br>Edge Center Edge)<br>**----- End of picture text -----**<br>


On 10*10cm ground plane (Center 

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Y<br>X<br>Z<br>**----- End of picture text -----**<br>


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Y<br>X<br>Z<br>**----- End of picture text -----**<br>


On 20*20cm ground plane (Center Edge) 

On 20*20cm ground plane (Off Center Edge) 

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Y<br>X<br>Z<br>**----- End of picture text -----**<br>


On 30*30cm ground plane (Center Edge) 

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Y<br>X<br>; s = ? ioe SS<br>Z<br>On 30*30cm ground plane (Off<br>Center Edge)<br>**----- End of picture text -----**<br>


**Figure.14.** Testing Setup in ETS Anechoic Chamber 

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## **4.1 2D Radiation Pattern (In free space)** 

## XY Plane 

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X<br>0<br>330 — —~_ 30<br>300 60<br>270 | |_| lag / |) 90 Y<br>| : |<br>240 . _/ \ 120<br>==<br>210 ~~<br>pf ~ 180<br>180 (dBi)<br>XZ Plane<br>Z<br>0<br>5<br>330 \ / 30<br>=<<br>270 | ee—— 90 X<br>**----- End of picture text -----**<br>


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## YZ Plane 

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Z<br>0<br>;<br>—<br>| :<br>Y<br>**----- End of picture text -----**<br>


- **4.2 3D Radiation Pattern (In free space)** 

2400MHz 

2450MHz 

2500MHz 

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**4.3 2D Radiation Pattern (On 10*10cm ground plane center edge)** 

XY Plane 

XZ Plane 

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X<br>0<br>_ 30<br>——__|<br>——__<br>60<br>Y<br>\ > Y 120<br>CO ===<br>180 (dBi)<br>Z<br>0<br>/ 30<br>i, 60<br>—s 90 X<br>**----- End of picture text -----**<br>


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## YZ Plane 

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Z<br>0<br>/ 30<br>/ , 60<br>Y<br>**----- End of picture text -----**<br>


**4.4 3D Radiation Pattern (On 10*10cm ground plane center edge)** 

2400MHz 

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2450MHz<br>**----- End of picture text -----**<br>


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2500MHz<br>**----- End of picture text -----**<br>


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**4.5 2D Radiation Pattern (On 10*10cm ground plane off center edge)** 

## XY Plane 

## XZ Plane 

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X<br>0<br>[oo]<br>30<br>\ 60<br>Y<br>fp} | 90<br>\ 120<br>150<br>180 (dBi)<br>Z<br>0<br>/ 30<br>|->> 60<br>X<br>**----- End of picture text -----**<br>


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## YZ Plane 

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Z<br>0<br>] 30<br>| 7 ”<br>Y<br>**----- End of picture text -----**<br>


**4.6 3D Radiation Pattern (On 10*10cm ground plane off center edge)** 

2400MHz 

2450MHz 

2500MHz 

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**4.7 2D Radiation Pattern (On the 20*20cm ground plane center edge)** 

## XY Plane 

## XZ Plane 

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X<br>0<br>[.s_—-,]<br>_ 30<br>60<br>Y<br>‘420<br>\<br>| 150<br>180 (dBi)<br>Z<br>0<br>/ 30<br>i, 60<br>—s N—| 90 X<br>**----- End of picture text -----**<br>


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YZ Plane<br>Z<br>0<br>330 \ / 30<br>“15<br>300 i \ / 60<br>Y<br>**----- End of picture text -----**<br>


**4.8 3D Radiation Pattern (On 20*20cm ground plane center edge)** 

2400MHz 

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2450MHz<br>**----- End of picture text -----**<br>


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2500MHz<br>**----- End of picture text -----**<br>


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**4.9 2D Radiation Pattern (On 20*20cm ground plane off center edge)** 

## XY Plane 

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X<br>0<br>ee,<br>30<br>\ 60<br>Y<br>}—}— ) 90<br>\ 120<br>150<br>(dBi)<br>0<br>/ 30<br>|~> 60<br>X<br>**----- End of picture text -----**<br>


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## YZ Plane 

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Z<br>0<br>/ ; 30<br>7<br>/ 60<br>Y<br>**----- End of picture text -----**<br>


**4.10 3D Radiation Pattern (On 20*20cm ground plane off center edge)** 

2400MHz 

2450MHz 

2500MHz 

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**4.11 2D Radiation Pattern (On 30*30cm ground plane off center edge)** 

## XY Plane 

XZ Plane 

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X<br>0<br>_ 30<br>——_,<br>60<br>en Y<br>\- ‘420<br>~ 180<br>180 (dBi)<br>Z<br>0<br>/ 30<br>I-y 60<br>ye X<br>**----- End of picture text -----**<br>


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## YZ Plane 

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**4.12 3D Radiation Pattern (On 30*30cm ground plane center edge)** 

2400MHz 

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2450MHz  2500MHz<br>**----- End of picture text -----**<br>


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**4.13 2D Radiation Pattern (On 30*30cm ground plane off center edge)** 

## XY Plane 

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X<br>0<br>-~ 5— [.s_—-,]<br>330. _ 30<br>=e,<br>15 ——_<br>300 60<br>270 | ft 4445 joo} 4 \ | 90 Y<br>~T!<br>240 —/ \- ‘420<br>210 © ay es 150<br>180 (dBi)<br>XZ Plane<br>Z<br>0<br>5<br>330 \ / 30<br>t<br>300 \ a, 60<br>270 > —— 90<br>X<br>**----- End of picture text -----**<br>


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## YZ Plane 

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Z<br>**----- End of picture text -----**<br>


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**4.14 3D Radiation Pattern (On 30*30cm ground plane off center edge)** 

2400MHz 

2450MHz 

2500MHz 

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## **5. DRAWING (Unit: mm)** 

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## **6. Packaging** 

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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. 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. 

Copyright © Taoglas 

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