Communications: radio wave antennas – Antennas – Microstrip
Patent
1986-02-19
1989-05-02
Sikes, William L.
Communications: radio wave antennas
Antennas
Microstrip
343749, 343830, H01Q 138
Patent
active
048272663
ABSTRACT:
Between a circular conductor plate and a grounding conductor plate, lumped constant elements such as coils and capacitors are connected. As a result, the resonance frequency of an antenna can be changed in a wide range.
REFERENCES:
patent: 3680136 (1972-07-01), Collings
patent: 3838429 (1974-09-01), Reggia
patent: 3852760 (1974-12-01), Reggia
patent: 4074270 (1978-02-01), Kaloi
patent: 4259670 (1981-03-01), Schiavone
patent: 4475108 (1984-10-01), Moser
"Microstrip Antennas with Frequency Agility and Polarization Diversity", by D. H. Schaubert et al., IEEE Transactions On Antennas and Propagation, vol. Ap.-29, No. 1, Jan. 1981, pp. 118 to 123.
Sato Shin'ichi
Takeda Fumio
Mitsubishi Denki & Kabushiki Kaisha
Sikes William L.
Wimer Michael C.
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