Communications: radio wave antennas – Antennas – Microstrip
Patent
1996-01-31
1998-09-01
Hajec, Donald T.
Communications: radio wave antennas
Antennas
Microstrip
343846, H01Q 138
Patent
active
058016600
ABSTRACT:
A planar antenna apparatus adapted to excite a small radiating element by electromagnetic coupling is provided. The antenna apparatus has a triplate line including ground conductor plates formed on the upper and lower surfaces of a dielectric substrate and a feed line sandwiched by the ground conductor plates. A coupling hole is formed through one of the ground conductor plates, and a mechanism is provided near the coupling hole for electrically interconnecting the two ground conductor plates. A radiating section coupled to the feed line through the coupling hole has one end grounded to form a short patch antenna. The short patch antenna has a size substantially half the size of a patch antenna. Also, the connecting mechanism prevents unnecessary coupling.
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Isota Yoji
Konishi Yoshihiko
Matsunaga Makoto
Nakahara Shintaro
Ohtsuka Masataka
Hajec Donald T.
Ho Tan
Mitsubishi Denki & Kabushiki Kaisha
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