Active reception antenna with coplanar feeder

Details Active reception antenna with coplanar feeder Active reception antenna with coplanar feeder

1995-09-21

1998-02-03

Hajec, Donald T.

Communications: radio wave antennas

Antennas

Loop type

343701, 333113, H01Q 700

Patent

active

057149658

ABSTRACT:
An active reception antenna with a coplanar waveguide having a high actual gain in the frequency band as broad as 100% or larger of the central frequency. The reception active antenna with a coplanar waveguide has: a pair of coplanar waveguide functioning as a feeder, the coplanar waveguide including a center conductor and two ground conductors printed on one surface of a dielectric film; and an antenna element conductor connected to the coplanar waveguide, the antenna element conductor being printed on the surface of the dielectric film, wherein the feed points of the antenna element conductor are disposed near the ends of the feeder, an active circuit including a field effect transistor is mounted between the feed points and the ends of the feeder, the impedance of the antenna element conductor and the feeder is matched together, and a signal received by the antenna element conductor is amplified and supplied to the feeder.

REFERENCES:
patent: 4459595 (1984-07-01), Kramer et al.
patent: 4602260 (1986-07-01), Lindenmeier et al.
patent: 4980693 (1990-12-01), Wong et al.
patent: 5019830 (1991-05-01), Harada
patent: 5138330 (1992-08-01), Lindenmeier et al.
patent: 5469180 (1995-11-01), Wiggenhorn
"Antenna Engineering Handbook", Third Edition, Richard C. Johnson, Georgia Institute of Technology, Atlanta Georgia, McGraw-Hill, Inc. pp. 5-1--5-23.

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