Continuous transverse stub element device antenna array configur

Details Continuous transverse stub element device antenna array configur Continuous transverse stub element device antenna array configur

1993-08-10

1995-05-02

Hajec, Donald

Communications: radio wave antennas

Antennas

Wave guide type

343772, 343767, H01Q 1300

Patent

active

054123941

ABSTRACT:
A dielectric material is formed into a structure having two parallel broad surfaces with one or more raised integral portions extending transversely across at least one of the broad surfaces. The exterior is uniformly conductively coated resulting in a parallel plate waveguide having a continuous transverse stub element disposed adjacent one plate thereof. Purely reactive elements are formed by leaving the conductive coating on the terminus of the stub element, or by narrowing the terminus of the stub element. Radiating elements are formed when stub elements of moderate height are opened to free space. Radiating, coupling and/or reactive continuous transverse stub elements may be combined in a common parallel plate structure in order to form a variety of microwave, millimeter wave and quasi-optical components including integrated filters, couplers and antenna arrays. Fabrication of the dielectrically-loaded continuous transverse stub element can be efficiently accomplished by machining, extruding or molding the dielectric structure, followed by uniform conductive plating in order to form the parallel plate transmission line. In the case of antenna applications, machining or grinding is performed on the stub terminus to expose the dielectric material at the end of the stub element.

REFERENCES:
patent: 4970522 (1990-11-01), Niman
patent: 5172127 (1992-12-01), Josefsson
patent: 5210543 (1993-05-01), Kurtz
patent: 5266961 (1993-11-01), Milroy

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