The present invention is a combined aircraft TCAS/Transponder with common antenna system and transmitter. Common TCAS/Transponder multi-monopole top and bottom antennas may be connected to a top and bottom antenna modules, the top and bottom antenna modules being electrically coupled to the combined...http://www.google.es/patents/US7436350?utm_source=gb-gplus-sharePatente US7436350 - Combined aircraft TCAS/transponder with common antenna system
Combined aircraft TCAS/transponder with common antenna system