PCS.25.A

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**Part No: PCS.25.A** 

**Description** Wi-Fi / Bluetooth 2.4GHz FR4 Chip Antenna 

**Features:** 

2.4GHz FR4 Chip Antenna Dimensions: 15x3x3mm SMD Antenna RoHS & Reach Compliant 

SPE-23-8-283-A 

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1. Introduction  2<br>2. Specifications  3<br>3. Antenna Characteristics  5<br>4. Radiation Patterns  7<br>5. Mechanical Drawing  10<br>6. Antenna Integration Guide  11<br>7. Packaging  19<br>Changelog  20<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 Taoglas PCS.25.A has been expertly designed as a 2.4GHz antenna for various Bluetooth and Wi-Fi applications. The PCS.25 is an FR4 antenna designed to be mounted via SMD on a PCB. The PCS.25 has been designed to operate both with and without clearance, meaning it can be used on boards where space is at a premium. 

Typical Applications Include: 

- Wearables 

- Keyless Entry 

- Handheld Devices 

- Smart Healthcare 

The PCS.25.A has been designed in a compact form factor of just 15x3x3mm, allowing it to be used in areas where other antennas that are currently on the market are used.. 

Patch antennas can be specifically tuned to customer-specific device environments, subject to NRE and MOQ. Contact your regional Taoglas customer support team to request these services or additional support to integrate and test this antenna’s performance in your device. 

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|**GNSS Frequency Bands**|**GNSS Frequency Bands**|**GNSS Frequency Bands**|**GNSS Frequency Bands**|**GNSS Frequency Bands**|**GNSS Frequency Bands**|
|---|---|---|---|---|---|
|**GPS**|**L1**<br>**1575.42 MHz**|**L2**<br>**1227.6 MHz**|**L5**<br>**1176.45 MHz**|||
||◼|◼||||
|**GLONASS**|**G1**<br>**1602 MHz**|**G2**<br>**1248 MHz**|**G3**<br>**1207 MHz**|||
||◼|◼||||
|**Galileo**|**E1**<br>**1575.24 MHz**|**E5a**<br>**1176.45 MHz**|**E5b**<br>**1201.5 MHz**|**E6**<br>**1278.75 MHz**||
||◼|||||
|**BeiDou**|**B1C**<br>**1575.42 MHz**|**B1I**<br>**1561 MHz**|**B2a**<br>**1176.45 MHz**|**B2b**<br>**1207.14 MHz**|**B3**<br>**1268.52 MHz**|
||◼|◼||||
|**QZSS (Regional)**|**L1**<br>**1575.42 MHz**|**L2C**<br>**1227.6 MHz**|**L5**<br>**1176.45 MHz**|**L6**<br>**1278.75e6**||
||◼|◼||||
|**IRNSS (Regional)**|**L5**<br>**1176.45 MHz**|||||
|||||||
|**SBAS**|**L1/E1/B1**<br>**1575.42 MHz**|**L5/B2a/E5a**<br>**1176.45 MHz**|**G1**<br>**1602 MHz**|**G2**<br>**1248 MHz**|**G3**<br>**1207 MHz**|
||◼||◼|◼||



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||**Electrical**|
|---|---|
|||
|**Frequency (MHz)**|**2400-2500MHz**|
|||
||**Efficiency (%)**|
|With Clearance|52|
|Without Clearance|31|
||**Average Gain (dB)**|
|With Clearance|-2.9|
|Without Clearance|-5.1|
||**Peak Gain (dBi)**|
|With Clearance|2|
|Without Clearance|0.1|
|**Impedance**|50 Ω|
|**Polarization**|Linear|
|**Radiation Pattern**|Omni|
|**Max. input power**|10W|
||***Tested on 70x70 mm ground plane**|



||**Mechanical**||
|---|---|---|
|Dimensions||15*3*3mm|
|Weight||2g|
|Material||FR4|



||**Mechanical**|
|---|---|
|Dimensions|15*3*3mm|
|Weight|2g|
|Material|FR4|
||**Environmental**|
|Temperature Range|-40°C to 85°C|
|Humidity|Non-condensing 65°C 95% RH|



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## Return Loss 

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PCS.25.A<br>**----- End of picture text -----**<br>


## Efficiency 

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## Average Gain 

## Peak Gain 

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## Test Setup 

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3D and 2D Radiation Patterns with clearance at 2450MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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3D and 2D Radiation Patterns with no clearance at 2450MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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## **6.1** Schematic Symbol and Pin Definitions a 

The circuit symbol for the antenna is shown below. The antenna has 3 pins with all three pins as functional. 

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Pin Description<br>Pf<br>1  RF Feed<br>2, 3  Ground<br>**----- End of picture text -----**<br>


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## Antenna Integration 

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

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## **6.3** PCB Layout | 

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. L2 is then placed tightly in parallel after that. C1 is an optional component but the footprint is recommended in case it is needed. 

Without Antenna 

With Antenna 

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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 15.3mm in width and 3.3mm in length from the corner the PCB. This clearance area includes the bottom side and ALL internal layers on the PCB other than the top layer. The clearance area for the top side extends to 12mm in width and 3.3mm in length, 1.8mm in from the edge of the PCB. 

Topside 

Bottom side 

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**6.5** Evaluation Board eee 

50mm 

50mm 

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## **6.6** Matching Circuit eas 

Matching components with the PCS.25.A 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**<br>**Number**|
|---|---|---|---|---|
|C1|Capacitor|Not<br>Fitted|-|-|
|L1|Inductor|1.6nH|Murata|LQW15AN1N6C00D|
|L2|Inductor|1.8nH|Murata|LQW15AN1N8C00D|



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## Footprint 

- **6.8** Top Solder Paste 

- ae —— 

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2000pcs PCS.25.A per Reel 

2000pcs PCS.25.A per Inner Carton Dimensions: 350*350*70 mm 

6000pcs PCS.25.A per Inner Carton Dimensions: 370*360*275 mm 

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330mm<br>Soy, | | ao®<br>275mm<br>370mm  360mm<br>330mm<br>70mm<br>**----- End of picture text -----**<br>


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Changelog for the datasheet 

**SPE-23-8-283– PCS.25.A** 

**Revision: A (Original First Release)** Date: 2023-09-12 Notes: Initial Release Author: Cesar Sousa 

**Previous Revisions** 

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