The present invention relates to low-cost improvement of performance of multiple radio wireless access points. It relates to combinations of an antenna and one or more of a filter or an active components such as a power amplifier, low noise amplifier, switching diode or RF phase shifter (with a plurality...http://www.google.com/patents/US6961596?utm_source=gb-gplus-sharePatent US6961596 - Modular RF antenna and filter system for dual radio WLAN access points
