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W3921B0100
RF Antenna, 2.4 GHz to 2.5 GHz, PCB, 1 dBi, 50 ohm, Adhesive
⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
- Manufacturer: PULSE ELECTRONICS
- Product type:
- Gain: 1dBi
- SVHC: No SVHC (04-Feb-2026)
- VSWR: 2
- Input Power: 2W
- Antenna Type: PCB
- Frequency Max: 2.5GHz
- Frequency Min: 2.4GHz
- Product Range: -
- Input Impedance: 50ohm
- Antenna Mounting: Adhesive
- Antenna Polarisation: Linear
| Delivery and price | |
|---|---|
| Units per pack | 500 |
| Price | 1.28 € |
| Current stock | 1000+ |
| Lead time | 30 days |
Datasheet
## **Description: FPC 2.4G antenna** ## **Series: Internal Antenna** ## **PART NUMBER: W3921XXXXX** ## **Features:** - 2400-2500MHz FPC dipole - Efficiency >50% - Gain +1dBi - 100mm cable length and U.FL compatible connector as standard setup, P/N W3921B0100 - Custom configurations upon request ## **Applications:** - Bluetooth, Zigbee, WiFi, BLE - ISM 2.4GHz band radios - Set top boxes, - Security - Transportation ## All dimensions are in mm / inches ## Issue: 2330 In the effort to improve our products, we reserve the right to make changes judged to be necessary. CONFIDENTIAL AND PROPRIETARY INFORMATION This document contains confidential and proprietary information of Pulse Electronics, Inc. (Pulse) and is protected by copyright, trade secret and other state and federal laws. Its receipt or possession does not convey any rights to reproduce, disclose its contents, or to manufacture, use or sell anything it may describe. Reproduction, disclosure or use without specific written authorization of Pulse is strictly forbidden. For more information: Pulse Worldwide Headquarters 15255 Innovation Drive #100 San Diego, CA 92128 USA Tel:1-858-674-8100 Pulse/Larsen Antennas 18110 SE 34[th] St Bldg 2 Suite 250 Vancouver, WA 98683 Europe Headquarters Pulse GmbH & Do, KG Zeppelinstrasse 15 Herrenberg, Germany Tel: 49 7032 7806 0 Pulse (Suzhou) Wireless Products Co, Inc. 99 Huo Ju Road(#29 Bldg,4[th] Phase Suzhou New District Jiangsu Province, Suzhou 215009 PR China Tel: 86 512 6807 9998 1 USA Tel: 1-360-944-7551- ## **Description: FPC 2.4G antenna** ## **Series: Internal Antenna** **PART NUMBER: W3921XXXXX** W3921B0039 39mm 1.13mm OD cable W3921B0050 50mm 1.13mm OD cable W3921B0100 100mm 1.13mm OD cable W3921T0150 150mm 0.81mm OD cable W3921B0150 150mm 1.13mm OD cable W3921B0120 120mm 1.13mm OD cable W3921B0200 200mm 1.13mm OD cable W3921B0450 450mm 1.13mm OD cable U.FL compatible connector U.FL compatible connector U.FL compatible connector W.FL compatible connector U.FL compatible connector U.FL compatible connector U.FL compatible connector U.FL compatible connector ## Issue: 2330 In the effort to improve our products, we reserve the right to make changes judged to be necessary. CONFIDENTIAL AND PROPRIETARY INFORMATION This document contains confidential and proprietary information of Pulse Electronics, Inc. (Pulse) and is protected by copyright, trade secret and other state and federal laws. Its receipt or possession does not convey any rights to reproduce, disclose its contents, or to manufacture, use or sell anything it may describe. Reproduction, disclosure or use without specific written authorization of Pulse is strictly forbidden. 2 ## **Description: FPC 2.4G antenna** ## **Series: Internal Antenna** ## **PART NUMBER: W3921XXXXX** |Frequency 2400-2500MHz|Frequency 2400-2500MHz| |---|---| |Nominal Impedance|50| |VSWR|< 2| |Gain|1dBi +/- 1 dB| |Efficiency 50%|Efficiency 50%| |Radiation Pattern Omni|Radiation Pattern Omni| |Polarization|Linear| |Power withstanding|2 W| ## _**(*) All RF parameters measured on 2mm thick PC plate**_ ## Issue: 2330 In the effort to improve our products, we reserve the right to make changes judged to be necessary. CONFIDENTIAL AND PROPRIETARY INFORMATION This document contains confidential and proprietary information of Pulse Electronics, Inc. (Pulse) and is protected by copyright, trade secret and other state and federal laws. Its receipt or possession does not convey any rights to reproduce, disclose its contents, or to manufacture, use or sell anything it may describe. Reproduction, disclosure or use without specific written authorization of Pulse is strictly forbidden. 3 ## **Description: FPC 2.4G antenna** ## **Series: Internal Antenna** **PART NUMBER: W3921XXXXX** |**MECHANICAL SPECIFICATIONS**| |---| |PCB type Flexible| |Radiator size 33[1.3] x 7.7[0.3] mm[inch]| |Adhesive 3M467| |Total thickness (Radiator + adhesive) 0.15[0.006] mm[inch]| |Weight<br>about 0.37 g| |Cable type OD 1.13mm/0.81mm coaxial cable| |Cable length Optional mm[inch]| |Connector<br>U.FL/W.FL compatible| |**ENVIRONMENTAL SPECIFICATIONS**| |Operating temperature -40/+85° C| ## Issue: 2330 In the effort to improve our products, we reserve the right to make changes judged to be necessary. CONFIDENTIAL AND PROPRIETARY INFORMATION This document contains confidential and proprietary information of Pulse Electronics, Inc. (Pulse) and is protected by copyright, trade secret and other state and federal laws. Its receipt or possession does not convey any rights to reproduce, disclose its contents, or to manufacture, use or sell anything it may describe. Reproduction, disclosure or use without specific written authorization of Pulse is strictly forbidden. 4 ## **Description: FPC 2.4G antenna** ## **Series: Internal Antenna** ## **PART NUMBER: W3921XXXXX** ## **MECHANICAL DRAWING** |ITEM<br>~~a~~|PROJECTA<br>LENGTH<br>~~ee~~|A LENGTH MM<br>~~Ce~~|CABLE P/N<br>~~(RD~~|Cable Diameter|CONNECTOR| |---|---|---|---|---|---| |1<br>~~a~~<br>~~a~~|W3921B0050<br>~~ee~~<br>~~ee~~|50<br>~~Ce~~<br>~~Cn~~|055-2248.001<br>~~(RD~~<br>~~(DQ~~|1.13mm<br>~~(DQ~~|U.FLCOMPATIBLE<br>~~(DQ~~| |2<br>~~a~~<br>~~a~~<br>~~a~~|W3921B0100<br>~~ee~~<br>~~ee~~<br>~~ee~~|100<br>~~Ce~~<br>~~Cn~~<br>~~Dn~~|055-2248.002<br>~~(RD~~<br>~~(DQ~~<br>~~(DO~~|1.13mm<br>~~(DQ~~<br>~~(DO~~|U.FLCOMPATIBLE<br>~~(DQ~~<br>~~(DO~~| |3<br>~~a~~<br>~~a~~<br>~~a~~|W3921T0150<br>~~ee~~<br>~~ee~~<br>~~es~~|150<br>~~Cn~~<br>~~Dn~~<br>~~ns RU~~|055-2248.003<br>~~(DQ~~<br>~~(DO~~<br>~~RU~~|0.81mm<br>~~(DQ~~<br>~~(DO~~<br>~~I~~|WFLCOMPATIBLE<br>~~(DQ~~<br>~~(DO~~| |4<br>~~a~~<br>~~a~~<br>~~a~~|W3921B0039<br>~~ee~~<br>~~es~~<br>~~ee~~|39<br>~~Dn~~<br>~~ns RU~~<br>~~Cn~~|055-2248.004<br>~~(DO~~<br>~~RU~~<br>~~(ON~~|1.13mm<br>~~(DO~~<br>~~I~~<br>~~QO~~|U.FLCOMPATIBLE<br>~~(DO~~| |5<br>~~a~~<br>~~a~~<br>~~a~~|W3921B0150<br>~~es ~~<br>~~ee~~<br>~~ee~~|150<br> ~~ns RU~~<br>~~Cn~~<br>~~Cs~~|055-2248.005<br>~~RU~~<br>~~(ON~~<br>~~CD~~|1.13mm<br>~~I~~<br>~~QO~~<br>~~QO~~|U.FLCOMPATIBLE| |6<br>~~a~~<br>~~a~~|W3921B0200<br>~~ee~~<br>~~ee~~|200<br>~~Cn~~<br>~~Cs~~<br>~~lL~~|055-2248.006<br>~~(ON~~<br>~~CD~~<br>~~lL~~<br>~~ld~~|1.13mm<br>~~QO~~<br>~~QO~~<br>~~ld~~<br>~~Le~~|U.FLCOMPATIBLE<br>~~Le~~| |7<br>~~a~~<br>~~Tl~~|W3921B0120<br>~~ee~~<br>~~Tl~~|120<br>~~Cs~~<br>~~Tl~~<br>~~lL~~|055-2248.007<br>~~CD~~<br>~~Tl~~<br>~~lL~~<br>~~ld~~|1.13mm<br>~~QO~~<br>~~Tl~~<br>~~ld~~<br>~~Le~~<br>~~k=~~|U.FLCOMPATIBLE<br>~~Tl~~<br>~~Le~~<br>~~k=~~| |8<br>~~DME~~|W3921B0450<br>~~DME~~|450<br>~~lL~~<br>~~DME~~|055-2248.008<br>~~lL~~<br>~~ld~~<br>~~DME~~|1.13mm<br>~~ld~~<br>~~Le~~<br>~~DME~~<br>~~k=~~|U.FLCOMPATIBLE<br>~~Le~~<br>~~DME~~<br>~~k=~~| In the effort to improve our products, we reserve the right to make changes judged to be necessary. CONFIDENTIAL AND PROPRIETARY INFORMATION This document contains confidential and proprietary information of Pulse Electronics, Inc. (Pulse) and is protected by copyright, trade secret and other state and federal laws. Its receipt or possession does not convey any rights to reproduce, disclose its contents, or to manufacture, use or sell anything it may describe. Reproduction, disclosure or use without specific written authorization of Pulse is strictly forbidden. Issue: 2330 5 ## **Description: FPC 2.4G antenna** ## **Series: Internal Antenna** ## **PART NUMBER: W3921XXXXX** ## **CHARTS** ## _**(*) All RF parameters measured on 2mm thick PC plate**_ ## Return Loss ## Issue: 2330 In the effort to improve our products, we reserve the right to make changes judged to be necessary. CONFIDENTIAL AND PROPRIETARY INFORMATION This document contains confidential and proprietary information of Pulse Electronics, Inc. (Pulse) and is protected by copyright, trade secret and other state and federal laws. Its receipt or possession does not convey any rights to reproduce, disclose its contents, or to manufacture, use or sell anything it may describe. Reproduction, disclosure or use without specific written authorization of Pulse is strictly forbidden. 6 ## **Description: FPC 2.4G antenna** ## **Series: Internal Antenna** ## **PART NUMBER: W3921XXXXX** ## **CHARTS** ## _**(*) All RF parameters measured on 2mm thick PC plate**_ ## VSWR ## Issue: 2330 In the effort to improve our products, we reserve the right to make changes judged to be necessary. CONFIDENTIAL AND PROPRIETARY INFORMATION This document contains confidential and proprietary information of Pulse Electronics, Inc. (Pulse) and is protected by copyright, trade secret and other state and federal laws. Its receipt or possession does not convey any rights to reproduce, disclose its contents, or to manufacture, use or sell anything it may describe. Reproduction, disclosure or use without specific written authorization of Pulse is strictly forbidden. 7 ## **Description: FPC 2.4G antenna** ## **Series: Internal Antenna** ## **PART NUMBER: W3921XXXXX** ## **CHARTS** ## _**(*) All RF parameters measured on 2mm thick PC plate**_ Efficiency(%) & Gain (dBi) ## Issue: 2330 In the effort to improve our products, we reserve the right to make changes judged to be necessary. CONFIDENTIAL AND PROPRIETARY INFORMATION This document contains confidential and proprietary information of Pulse Electronics, Inc. (Pulse) and is protected by copyright, trade secret and other state and federal laws. Its receipt or possession does not convey any rights to reproduce, disclose its contents, or to manufacture, use or sell anything it may describe. Reproduction, disclosure or use without specific written authorization of Pulse is strictly forbidden. 8 ## **Description: FPC 2.4G antenna** ## **Series: Internal Antenna** ## **PART NUMBER: W3921XXXXX** ## **CHARTS** **==> picture [579 x 517] intentionally omitted <==** **----- Start of picture text -----**<br> Z<br>Typical free space radiation pattern<br>WIFI2.4GHz<br>(*) All RF parameters measured on 2mm thick<br>a<br>PC plate<br>X Y<br>XY Plane<br>0<br>5<br>30<br>330 0<br>2400MHz<br>-5<br>Avg (dBi) = -5.13<br>Peak (dBi) = -1.55<br>-10<br>Avg -3 (deg) = 175<br>jv<br>~ 60<br>-15<br>300 X 2450MHz<br>-20<br>Avg (dBi) = -4.30<br>Peak (dBi) = -0.51<br>-25<br>Avg -3 (deg) = 215<br>-30<br>f_™ Y 2500MHz<br>90<br>-35 Avg (dBi) = -3.27<br>270<br>Peak (dBi) = 0.98<br>Avg -3 (deg) = 155<br>(mM)<br>\ | 120<br>240<br>SS 150<br>210 és 2400MHz 2450MHz<br>180<br>Phi Angle (°) 2500MHz<br>Power (dBm)<br>**----- End of picture text -----**<br> ## Issue: 2330 In the effort to improve our products, we reserve the right to make changes judged to be necessary. CONFIDENTIAL AND PROPRIETARY INFORMATION **==> picture [8 x 10] intentionally omitted <==** **----- Start of picture text -----**<br> 9<br>**----- End of picture text -----**<br> This document contains confidential and proprietary information of Pulse Electronics, Inc. (Pulse) and is protected by copyright, trade secret and other state and federal laws. Its receipt or possession does not convey any rights to reproduce, disclose its contents, or to manufacture, use or sell anything it may describe. Reproduction, disclosure or use without specific written authorization of Pulse is strictly forbidden. ## **Description: FPC 2.4G antenna** ## **Series: Internal Antenna** ## **PART NUMBER: W3921XXXXX** ## **CHARTS** Typical free space radiation pattern WIFI2.4GHz _**(*) All RF parameters measured on 2mm thick PC plate**_ ZX Plane 0 5 30 330 0 2400MHz -5 Avg (dBi) = -2.49 = -10 Peak (dBi) = 0.92 Avg -3 (deg) = 85 60 -15 300 Z 2450MHz -20 f \ Avg (dBi) = -2.57 Peak (dBi) = 1.05 -25 Avg -3 (deg) = 85 -30 2500MHz 90 -35 X Avg (dBi) = -1.77 270 Peak (dBi) = 1.68 | : . Avg -3 (deg) = 77. 5 **~** <7 120 240 Cr —N 150 210 2400MHz 2450MHz 180 Theta Angle (°) 2500MHz ## Issue: 2330 In the effort to improve our products, we reserve the right to make changes judged to be necessary. CONFIDENTIAL AND PROPRIETARY INFORMATION **==> picture [14 x 10] intentionally omitted <==** **----- Start of picture text -----**<br> 10<br>**----- End of picture text -----**<br> This document contains confidential and proprietary information of Pulse Electronics, Inc. (Pulse) and is protected by copyright, trade secret and other state and federal laws. Its receipt or possession does not convey any rights to reproduce, disclose its contents, or to manufacture, use or sell anything it may describe. Reproduction, disclosure or use without specific written authorization of Pulse is strictly forbidden. ## **Description: FPC 2.4G antenna** ## **Series: Internal Antenna** ## **PART NUMBER: W3921XXXXX** ## **CHARTS** Typical free space radiation pattern WIFI2.4GHz _**(*) All RF parameters measured on 2mm thick PC plate**_ YZ Plane **==> picture [543 x 409] intentionally omitted <==** **----- Start of picture text -----**<br> 0<br>5<br>30<br>0<br>330<br>2400MHz<br>-5<br>Avg (dBi) = -4.38<br>-10 Peak (dBi) = 1.02<br>Avg -3 (deg) = 70<br>60<br>-15<br>300<br>2450MHz<br>-20 Y Avg (dBi) = -4.30<br>Peak (dBi) = 1.17<br>-25<br>Avg -3 (deg) = 50<br>-30<br>Z 2500MHz<br>90<br>-35 Avg (dBi) = -4.08<br>270<br>\ | Peak (dBi) = 1.83<br>Avg -3 (deg) = 27.<br>5<br>120<br>240 ALJ<br>150<br>210 _ 2400MHz 2450MHz<br>180<br>Theta Angle (°) 2500MHz<br>Power (dBm)<br>**----- End of picture text -----**<br> ## Issue: 2330 In the effort to improve our products, we reserve the right to make changes judged to be necessary. CONFIDENTIAL AND PROPRIETARY INFORMATION 11 This document contains confidential and proprietary information of Pulse Electronics, Inc. (Pulse) and is protected by copyright, trade secret and other state and federal laws. Its receipt or possession does not convey any rights to reproduce, disclose its contents, or to manufacture, use or sell anything it may describe. Reproduction, disclosure or use without specific written authorization of Pulse is strictly forbidden. ## **Description: FPC 2.4G antenna** ## **Series: Internal Antenna** **PART NUMBER: W3921XXXXX** ## **PACKAGING** ## 10PCS/PE bag 10 PE bag/foam bag 50 foam bag/ carton box ## Total 5000PCS/Carton box ## Issue: 2330 12 In the effort to improve our products, we reserve the right to make changes judged to be necessary. CONFIDENTIAL AND PROPRIETARY INFORMATION This document contains confidential and proprietary information of Pulse Electronics, Inc. (Pulse) and is protected by copyright, trade secret and other state and federal laws. Its receipt or possession does not convey any rights to reproduce, disclose its contents, or to manufacture, use or sell anything it may describe. Reproduction, disclosure or use without specific written authorization of Pulse is strictly forbidden.
Updated at June 9, 2026
Pulse Electronics, a YAGEO company, is a global leader in the design and manufacturing of passive electronic components. With a legacy of innovation dating back to 1956, the company provides essential technology for the communications, computing, industrial, transportation, and IoT sectors. Pulse is recognized worldwide for delivering high-performance solutions that power advanced applications, ranging from 5G networks and electric vehicles to data centers and smart grids. The company's extensive product portfolio is heavily anchored in power and networking magnetics. This includes a comprehensive range of power inductors engineered for exceptional efficiency and reliability in demanding environments. To address complex electromagnetic compatibility challenges, Pulse also manufactures highly effective EMC and RFI suppression solutions, such as common mode chokes and filters, alongside specialized toroidal and RF inductors designed to ensure clean power delivery and optimal signal integrity. Beyond traditional magnetics, Pulse excels in the development of advanced wireless and power conversion components. Their connectivity solutions feature a wide array of high-performance RF antennas and single-band chip antennas tailored for modern connected devices. Furthermore, to support sophisticated power architectures, Pulse provides a broad spectrum of transformers—encompassing PCB-mounted designs, current sensing transformers, and precise pulse transformers—equipping engineers with robust, industry-proven components for power isolation and measurement.
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