Wideband planar leaky-wave microstrip antenna

Details Wideband planar leaky-wave microstrip antenna Wideband planar leaky-wave microstrip antenna

1998-03-30

1999-12-21

Wong, Don

Communications: radio wave antennas

Antennas

Microstrip

343829, 343846, H01Q 138

Patent

active

060055200

ABSTRACT:
A wideband leaky-wave microstrip antenna having two elongated rectangular nductive patches separated by a gap on a first dielectric material and an elongated rectangular conductive coupling patch on a second dielectric material placed over the gap. The selective placement of the conductive patches and the gap formed thereby permits impedance matching resulting in a leaky-wave propagation mode. Non-radiating modes of propagation are not excited, thereby enhancing the leaky-wave mode of propagation causing radiation. This results in a relatively wide bandwidth of operation that has a main beam that is scannable as a function of frequency. The bandwidth increases substantially as the dielectric constant approaches one. The planar construction contributes to design flexibility and ease of manufacture and has many applications military and commercial communication systems.

REFERENCES:
patent: 4980693 (1990-12-01), Wong et al.
patent: 5561435 (1996-10-01), Nalbandian et al.
U.S. application No. 09/040,006, Nalbandian et al., filed Mar. 17, 1998.

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