33-4022-10-0290

TW4020/TW4022 Wideband GPS Antenna The TW4020/TW4022 is a commercial grade wideband GNSS antenna covering the GPS L1, frequency band. It features a small patch element with 40% wider bandwidth than typical GPS L1 antennas. The TW4020/TW4022 features a high performance custom tuned ceramic patch element, 15 KV ESD circuit protection, a high gain two-stage low noise amplifier (LNA) with a mid-section high rejection SAW filter. It covers the GPS L1 and SBAS (WAAS/EGNOS/MSAS) frequency band (1572.5 to 1578 MHz), and it offers great circular polarized signal reception. The TW4022 includes a pre-filter designed to mitigate strong intermodulated or near frequency signals. Even with the wider bandwidth, the TW4020/TW4022 antenna is among the smallest high performance antenna available. It is housed in a compact IP67 magnetic mount enclosure. Applications • • • Cost Sensitive Positioning Fleet Management & Asset Tracking Covert surveillance Features • • • • • • • • 40% wider bandwidth, small footprint Axial ratio: 1dB typ (GPS ) Low noise LNA: 1 dB High rejection SAW filter High gain: 28 dB typ. Wide voltage input range: 2.5 to 16 VDC IP67 weather proof housing Low Power: 9mA typ. at 2.3Vcc min. Benefits • • • • • Increased system accuracy Excellent signal to noise ratio RoHS compliant Ideal for harsh environments Excellent out of band signal rejection TW4020/TW4022 Wideband GPS Antenna Specifications Antenna Architecture 1 dB Bandwidth Antenna Gain (with 100mm ground plane) Axial Ratio over Bandwidth (over full bandwidth) Electrical Architecture Polarization Gain Gain flatness Out-of-Band Rejection (typ) VSWR (at LNA output) Noise Figure Supply Voltage Range (over coaxial cable) Supply Current ESD Circuit Protection Mechanicals & Environmental Mechanical Size Cable Operating Temp. Range Enclosure Weight Attachment Method Environmental Shock Vibration Wideband Single Feed Patch 31 MHz 4.5 dBic SAW filter-> LNA stage 2 (TW4020) SAW filter LNA stage 1 -> SAW filter-> LNA stage 2 (TW4022) Filtered LNA Frequency Bandwidth 1565 to 1585 MHz RHCP TW4020: 26dB min., TW4022: 25dB min, +/- 2 dB, 1575 to 1606 MHz TW4020 TW4022 70dB 65dB >1640 MHz -40dB ->60dB