Multiple frequency array antenna

Details Multiple frequency array antenna Multiple frequency array antenna

1998-08-25

2000-05-02

Le, Hoanganh

Communications: radio wave antennas

Antennas

Microstrip

H01Q 124

Patent

active

060578017

ABSTRACT:
A small co-planar multiple frequency array antenna. Two printed antennae and a double U-shaped printed antenna are formed on a substrate. The projecting length D1 of the two printed antennae from the double U-shaped printed antenna, the longitudinal distance D2 and the transversal distance D3 between the two printed antennae and the double U-shaped printed antenna are adjusted to obtain the optimum matching for the resonance frequencies F1 and F2 (F1<F2). Here, D1 and the distance DD1 are adjusted to obtain a resonance peak at F2. F1 and F2 are determined by the length RL1, RL2 of the resonance edge portion of the double U-shaped printed antenna and the resonance edge portion of the two printed antennae. The width W1, W2 of the two printed antennae and the double U-shaped printed antenna are also adjusted to control the matching at F1 and F2.

REFERENCES:
patent: 4929959 (1990-05-01), Sorbello et al.
patent: 5523768 (1996-06-01), Hemmie et al.
patent: 5798737 (1998-08-01), Kanaba et al.

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