作者: Arthur W. Astrin
DOI:
关键词: Electrical engineering 、 Electrical contacts 、 Wireless access point 、 Power (physics) 、 Antenna (radio) 、 Wireless 、 Engineering 、 Adapter (computing) 、 Radio frequency signal 、 Signal
摘要: A keyed antenna apparatus ( 10, 10 b ) for adapting a wireless access point 12, 12 a, to an external 52, 54 or group 22 ). plurality of notches 62, 64 in jack 26, 26 b, c accept plug 28, 28 having thereon key projections 72, 74 The produce signals by depressing microswitches 76 ), contacting electrical contacts 78 the like. selectively cause switch 18 signal path 19 between internal antennas 50, 20 and Further, adapter 16 modify radio frequency characteristics, such as power.