Communications: radio wave antennas – Antennas – Within conductive apertured wall
Patent
1998-02-24
1999-11-30
Wong, Don
Communications: radio wave antennas
Antennas
Within conductive apertured wall
343700MS, H01Q 142
Patent
active
059950587
ABSTRACT:
A system with two concentric antennas for two bands of microwave frequencies includes between the two concentric antennas a system for eliminating or attenuating propagation of waves from the inner antenna to the outer antenna.
REFERENCES:
patent: 2791769 (1957-09-01), Lindenblad
patent: 4208660 (1980-06-01), McOwen, Jr.
patent: 4625188 (1986-11-01), Bourgie
patent: 4740975 (1988-04-01), Seavey
patent: 4821040 (1989-04-01), Johnson et al.
patent: 5220337 (1993-06-01), Ajioka
Croq Frederic
Legay Herve
Rostan Thierry
Alcatel
Nguyen Hoang
Wong Don
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