Wave transmission lines and networks – Coupling networks – Balanced to unbalanced circuits
Reexamination Certificate
2011-07-05
2011-07-05
Lee, Benny (Department: 2817)
Wave transmission lines and networks
Coupling networks
Balanced to unbalanced circuits
C333S212000, C333S230000
Reexamination Certificate
active
07973615
ABSTRACT:
The present invention provides an RF module capable of converting electromagnetic waves in the TE mode to balanced electromagnetic waves in the TEM mode without adjustment and outputting the balanced electromagnetic waves while easily realizing miniaturization. The RF module includes: a waveguide in which a half-wavelength TE mode resonator is formed; an E plane coupling window formed in a wall portion orthogonal to an H plane out of wall portions constructing the TE mode resonator in the waveguide; an output line provided at the edge on the side of the wall portion parallel with the H plane on the E plane coupling window, and magnetically coupled to electromagnetic waves in the TE mode resonator; and another output line provided at the edge on the side of the wall portion parallel with the H plane in the E plane coupling window, and magnetically coupled to the electromagnetic waves.
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Fukunaga Tatsuya
Hatanaka Kiyoshi
Ikeda Masaaki
Lee Benny
Oliff & Berridg,e PLC
Stevens Gerald
TDK Corporation
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