摘要:
An antenna system is provided which employs RF and DC coupling across a dielectric. RF coupling is achieved using low cost and low loss RF coupler pairs such as quarterwave patches that are mounted opposite each other on either side of a dielectric. The feeds of the patches are aligned so as to be directly opposite each other, and the patches are mounted against the dielectric. A voltage booster circuit can be provided to increase input supply voltage for DC coupling that is adjustable to accommodate the thickness of the dielectric.
摘要:
A vehicle antenna mounting system whereby the antenna, associated antenna electronics (e.g., LNA) and RF and DC coupling are provided in an integral antenna assembly for installation on the exterior of a vehicle. The integral antenna assembly comprises a base section enclosing the associated antenna electronics and RF and DC coupling devices, and an antenna section pivotably mounted on the base section comprising the antenna. Two or more antennas are provided in the integral antenna assembly for SDARS reception on at least one satellite channel and a terrestrial channel. Another satellite channel can be provided for diversity purposes, or a global positioning system (GPS) satellite receiver for performing location services, among others, for the vehicle.