Description: 860-930MHz Embedded Helical Antenna Series: PART NUMBER: W3139 SMD Helical Antenna Features: Antenna type: Helix with molded plastic support Fully SMD compatible Size 14x3mm Minimum keep out 4.2mm RoHS compliant Applications: ISM 868MHz and 915MHz radio systems Sensors Remote controls Security IoT All dimensions are in mm / inches Issue: 1924 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 Pulse/Larsen Antennas Europe Headquarters Pulse (Suzhou) Wireless Products Co, Inc. 1 th th 15255 Innovation Drive 100 18110 SE 34 St Bldg 2 Suite 250 Pulse GmbH & Do, KG 99 Huo Ju Road( 29 Bldg,4 Phase San Diego, CA 92128 Vancouver, WA 98683 Zeppelinstrasse 15 Suzhou New District Jiangsu Province, Suzhou 215009 PR China USA USA Herrenberg, Germany - Tel: 86 512 6807 9998 Tel:1-858-674-8100 Tel: 1-360-944-7551 Tel: 49 7032 7806 0Description: 860-930MHz Embedded Helical Antenna Series: PART NUMBER: W3139 SMD Helical Antenna ELECTRICAL SPECIFICATIONS Antenna Type Helical Frequency 860-930MHz Nominal Impedance 50 Radiation Pattern Omni Polarization Linear Power Withstanding 2W Frequency Return Gain Efficiency band Loss PWB 1 ISM8685MHz <-8dB -2.5 35% (small clearance, 4.2mm copper free area from the PCB edge ) ISM91513MHz <-8dB -2.5 30% ISM8685MHz <-10dB -0.5 55% PWB 2 (big clearance, 9.5mm copper free area from the PCB edge) ISM91513MHz <-10dB -1 45% Issue: 1924 2 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.