Cable to waveguide transition apparatus having signal...

Details Cable to waveguide transition apparatus having signal... Cable to waveguide transition apparatus having signal...

2011-07-12

2011-07-12

Jones, Stephen E (Department: 2817)

Wave transmission lines and networks

Coupling networks

Balanced to unbalanced circuits

C333S254000

Reexamination Certificate

active

07978022

ABSTRACT:
A cable to waveguide transition apparatus having a signal accumulation form of a backshort is disclosed. The cable to waveguide transition apparatus having a signal accumulation form of a backshort, includes: a waveguide; a RF probe for transferring a radio frequency (RF) signal to the waveguide; and a backshort having the signal accumulation form for reflecting the RF signal excited from the RF probe, wherein the backshort reflects a first fundamental frequency signal excited from the RF probe to have a phase identical to a phase of a second fundamental frequency signal excited from the RF probe to an aperture of the waveguide, and reflects a first 2-order harmonic frequency signal excited from the RF probe to have a phase reverse to a phase of a second 2-order harmonic frequency signal excited to an aperture of the waveguide in order to eliminate the 2-order harmonic frequency signal.

REFERENCES:
patent: 4672388 (1987-06-01), Grim
patent: 6549106 (2003-04-01), Martin
patent: 53-49949 (1978-04-01), None
patent: 10-041716 (1998-02-01), None
patent: 1992-0002772 (1990-10-01), None
patent: 1997-18833 (1997-04-01), None
R.B. Keam et al., Broadband design of coaxial line/rectangular waveguide probe transition, IEE Proceedings—Microwave Antennas Propagation, vol. 141, No. 1, pp. 53-57, Feb. 1994.

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