Dual slot planar mobile antenna fed with coaxial cables

Details Dual slot planar mobile antenna fed with coaxial cables Dual slot planar mobile antenna fed with coaxial cables

1989-11-02

1992-06-23

Wimer, Michael C.

Communications: radio wave antennas

Antennas

With vehicle

343769, 343770, H01Q 1310

Patent

active

051247143

ABSTRACT:
A plane antenna for automobiles including a peripheral conducting surface, a first inner conducting surface provided in the peripheral conducting surface with a space in between, a second inner conducting surface provided in the first inner conducting surface with a space in between. A core conductor of a first coaxial line is connected to the first inner conducting surface and an outer skin of the first coaxial line is connected to the peripheral conducting surface, and a core conductor of a second coaxial line is connected to the second inner conducting surface and an outer skin of the second coaxial line is connected to the first inner conducting surface. The second coaxial line can be divided into two sections so that these sections are inductively connected to each other by coils.

REFERENCES:
patent: 4162499 (1979-07-01), Jones et al.
patent: 4208660 (1980-06-01), McOwen
patent: 4320402 (1982-03-01), Bowen
patent: 4809008 (1989-02-01), Gunton
Bhattacharyya et al., "A Microstrip Array of Concentric Annular Rings", IEEE Antennas and Prop. vol. AP--33, No. 6 Jun. 1985.

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