the tw3370/tw3372 is a high gain (40db) gnss antenna covering the gps l1, glonass l1 and sbas (waas, egnos & msas) frequency band (1575 to 1606 mhz). it features a patch element with 40% widerbandwidth than previously available in this format. unlike its competitors, both gps-l1 and glonass signals are included in the 1db received power bandwidth. the tw3370/tw3372 has a three stage lownoise amplifier with a mid-section saw. a tight pre-filter is available with the tw3372 to protect against saturation by high level sub-harmonics and l-band signals making it particularly suitablefor timing applications. the tw3370/tw3372 has a 19mm (3/4 inch) though hole, permanent mount white-metal base, with an industrial-grade, ip67 compliant conical radome. two options for pole mountingare available an l-bracket (p/n#23-0040-0) or a pipe mount (p/n#23-0065-0).
antenna architecture wideband single feed patch 1 db bandwidth 31 mhz 10db return loss bandwidth 45mhz antenna gain (with 100mm ground plane) 4.5 dbic axial ratio saw filter-> lna stage 2 tw3372 saw pre-filter ->lna stage 1 -> saw filter-> lna stage 2 filtered lna frequency bandwidth1575 to 1606 mhz polarization rhcp gain 41 db min., tw3370 40db min., tw3372 gain flatness +/- 2 db, 1575 to 1606 mhz out-of-band rejection 32 db (tw3370) >50db (tw3372) 25 db >50db >1640 mhz >35 db >70db vswr (at lna output)

---

北京北斗联星科技有限公司
薛云杰
18612719456
北京市西城区马连道11号一商大厦818