Communications: radio wave antennas – Antennas – Microstrip
Patent
1998-05-15
2000-05-30
Wong, Don
Communications: radio wave antennas
Antennas
Microstrip
343702, 343831, H01Q 138
Patent
active
060695870
ABSTRACT:
A multiband millimeterwave antenna system for communicating signals in multiple frequency bands is disclosed. A main antenna body is connected to antenna extensions by micro-electro-mechanical switches. By opening and closing the switches, the length of the antenna can be altered. The antenna is coupled to a microstrip feed line by an aperture. A series of matching stubs match the impedance of the feed line for the various signal frequencies.
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patent: 5541614 (1996-07-01), Lam et al.
patent: 5633645 (1997-05-01), Day
patent: 5874919 (1999-02-01), Rawnick et al.
Brown Julia
Choudhury Debabani
Hyman Daniel J.
Lam Juan
Lee Jar J.
Chen Shih-Chao
Duraiswamy Vijayalakshmi D.
Hughes Electronics Corporation
Lortz Bradley K.
Sales Michael W.
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