Communications: radio wave antennas – Antennas – Wave guide type
Patent
1999-03-25
2000-03-28
Wong, Don
Communications: radio wave antennas
Antennas
Wave guide type
343772, 343775, 333 21A, H01Q 1300
Patent
active
060437898
ABSTRACT:
According to the present invention, there is provided a satellite broadcast receiving converter which comprises a waveguide in which the broadcast wave travelling therein travels as a first TE11 mode linearly polarized wave and as a second TE mode linearly polarized wave intersecting at a right angle with each other, a first probe disposed at a predetermined position within this waveguide for detecting the first linearly polarized wave, a first reflecting conductor disposed approximately 1/4 of the wavelength separate from the first probe in the direction in which the electric wave travels for reflecting the first linearly polarized wave, a second probe disposed in the neighborhood of the first reflecting conductor for detecting the second linearly polarized wave, and a second reflecting conductor disposed approximately 1/4 of the wavelength from the second probe in the direction in which the electric wave travels for reflecting the second linearly polarized wave. On the second reflecting conductor, an electrically conductive columnar portion is provided for protrusion so that it may lie in the neighborhood of the inner peripheral surface of the waveguide on the axial line thereof.
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Sato Shigeru
Suzuki Shigetaka
Alps Electric Co. ,Ltd.
Phan Tho
Wong Don
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