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US 9,755,290 B2Granted
Electromagnetic wave mode transducer
AssigneeCity University of Hong Kong
InventorsQuan Xue, Peng Wu
Life of this patent
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Abstract
Electromagnetic (EM) mode transition or transducer structures and related devices, techniques, and methods are described. An exemplary EM mode transition or transducer structure can comprise a waveguide cavity section configured to transmit a transverse electric mode 20 (TE20) mode of the EM waves. An exemplary EM mode transition can further comprise a fundamental mode rejection section configured to suppress or reflect a transverse electric mode 10 (TE10 mode) and a transverse electric mode 30 (TE30) mode of the EM waves.
Claims24
A device, comprising:
- an electromagnetic (EM) mode transducer comprising:
- a waveguide cavity section, wherein the waveguide cavity section comprises an over-moded waveguide cavity section configured to propagate or excite more than one mode of EM waves over a selected frequency range;
- and
- a fundamental mode rejection section, wherein the EM mode transducer is configured as an EM mode transition between a fundamental mode transmission line and a transverse electric mode 20 (TE20 mode) waveguide.
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A method, comprising:
- transmitting or receiving electromagnetic (EM) waves at an EM mode transducer to or from a fundamental mode transmission line via an over-moded waveguide cavity section of the EM mode transducer that propagates or excites more than one mode of the EM waves over a selected frequency range;
- and
- propagating a transverse electric mode 20 (TE20 mode) of the more than one mode of the EM waves in the EM mode transducer.
An apparatus, comprising:
- means for transmitting or receiving electromagnetic (EM) waves to or from a fundamental mode transmission line wherein the EM waves comprises a transverse electric mode 10 (TE10 mode), a transverse electric mode 20 (TE20 mode), and a transverse electric mode 30 (TE30 mode);
- means for suppressing the TE30 mode of the EM waves;
- means for reflecting or suppressing the TE10 mode of the EM waves;
- and
- means for controlling propagation of the TE20 mode of the EM waves from the fundamental mode transmission line.
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Dependencies are inferred from the claim text.