This document provides a five-band+ GPS Antenna design; this simulation is for wireless LAN.
Application:
The application shall apply for antenna unit which shall be used for AVL or Fleet Management antenna systems. The combination of High Gain GPS antenna and a low profile covert GSM antenna is highly ideal for these applications that require durability, small in size, covert installation and rugged construction.
1.Physical condition: (1) Construction: polycarbonate-radome at top, die-cast shell at bottom/ rubber gasket for water seal in between. (2) Dimension: 44.8mm (L) x 44.8mm (W) x 14.3mm (H). (3) Weight: 50 grams (excluding cable & connector). 2.Environmental conditions: (1) Operation temperature: -40°C to +85°C. (2) Storage temperature: -40°C to +100°C. (3) Relative humidity: 95% non-condensing. 3.Cable & connector: (1) Cable: 5 meter RG174/U (standard) cable, other length available. (2) Connector available: BNC,TNC,FME (to be adapted), GT5, MCX (OSX), SMA, SMB or SMC in straight or right angle. (3) Optional adapters universal connector adapter (FME to TNC/BNC/SMA/SMB/MCX). 4.Antenna element: (1) Center frequency: 1575.42 MHz +/-1.023MHz. (2) Polarization: R.H.C.P. (right handed circular polarization). (3) Absolute gain @ zenith: 3 dbic typ. (4) Gain: 90 o: 2.0dBi min/ 20o: -5.0dBi min. (5) Mounted on the 60mm x 60mm square ground plane. (6) Axial ratio: 90o: 3.0dB max.