Transition between a microstrip circuit and a waveguide...

Details Transition between a microstrip circuit and a waveguide... Transition between a microstrip circuit and a waveguide...

2006-12-12

2006-12-12

Lee, Benny (Department: 2817)

Wave transmission lines and networks

Coupling networks

Balanced to unbalanced circuits

C333S230000, C333S208000

Reexamination Certificate

active

07148766

ABSTRACT:
The invention proposes a transition between a microstrip technology circuit and a waveguide, the waveguide being furnished with a probe linked electrically to the microstrip circuit. The transition comprises at least one first resonant cavity coupled by a first hole placed level with the said plane. The transition furnished with the cavity behaves as a bandstop filter. The transition is placed in an outside unit of a transmission system comprising a transmit circuit embodied in microstrip technology and an antenna of waveguide type. A transmit circuit comprises at least one local oscillator and the resonant cavity is tuned to the frequency of the local oscillator.

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French Search Report of Oct. 7, 2003.

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