Dynamically changing operational band of an electromagnetic...

Details Dynamically changing operational band of an electromagnetic... Dynamically changing operational band of an electromagnetic...

2005-04-12

2005-04-12

Wong, Don (Department: 2821)

Communications: radio wave antennas

Antennas

Wave guide type

C343S772000, C343S7810CA

Reexamination Certificate

active

06879297

ABSTRACT:
The invention concerns a multi-mode electromagnetic horn antenna that can operate over two or more distinct bands of frequencies. The horn (100) includes a throat portion (102) and an aperture (108) disposed at an end of the horn (100) opposed to the throat portion (102). A flared section (104, 106) is disposed between the throat portion and the aperture. At least one dimension of the flared section can increase in size along an axial length of the horn defined between the throat portion (102) and the aperture (108). Further, a dielectric load (103) can be disposed within the throat portion (102). The dielectric load is advantageously comprised a fluid dielectric (103).

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