Title:
LOW PROFILE WAVEGUIDE NETWORK FOR ANTENNA ARRAY
Document Type and Number:
WIPO Patent Application WO2001048857
Kind Code:
A3
Abstract:
A waveguide network has a first port and a plurality of second ports connected to a two dimensional rectangular array of antenna elements. The second ports and antenna elements are oriented in a fixed direction. The waveguide network includes at least three successive sets of junctions and bends including a first set connected to the first port and a last set connected to the second ports. The junctions and bends in each set are all E-plane junctions and E-plane bends or are all H-plane junctions and H-plane bends, and successive sets alternate between a set of E-plane junctions and E-plane bends and a set of H-plane junctions and H-plane bends. The bends in at least one set lead in the fixed direction, and the bends in at least one other set, not including the last set, lead in a direction opposite to the first direction. Preferably, the waveguide bends in each set, other than the first set and possibly the last set, lead in a direction opposite to the bends in the previous set. The waveguide network is conveniently assembled from one piece containing all of the E-plane junctions and E-plane bends and another containing all of the H-plane junctions and H-plane bends.
Inventors:
WU CHEN (CA)
Application Number:
PCT/CA2000/001575
Publication Date:
November 29, 2001
Filing Date:
December 21, 2000
Export Citation:
Assignee:
LITVA ANTENNA ENTPR INC (CA)
WU CHEN (CA)
WU CHEN (CA)
International Classes:
H01Q21/00; (IPC1-7): H01Q21/00
Foreign References:
| EP0320675A2 | 1989-06-21 | |||
| US6034647A | 2000-03-07 |
Other References:
SEHM T ET AL: "A LARGE PLANAR 39-GHZ ANTENNA ARRAY OF WAVEGUIDE-FED HORNS", IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION,US,IEEE INC. NEW YORK, vol. 46, no. 8, 1 August 1998 (1998-08-01), pages 1189 - 1193, XP000774715, ISSN: 0018-926X
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