Narrow Band Ridge waveguide-to-microstrip transition for low Noise Amplifier at Ku-band. | [Proceedings 6th International Bhurban Conference on Applied Sciences and Technology • 2009]

Author(s):

1. Zahid Yaqoob Malik: Centre for Wireless Communication, National Engineering and Scientific Commission, Pakistan

2. Abdul-Mueed: Centre for Wireless Communication, National Engineering and Scientific Commission, Pakistan

3. Muhammad Imran Nawaz: Centre for Wireless Communication, National Engineering and Scientific Commission, Pakistan

Abstract:

A compact Ku-band waveguide-to-microstrip transition integrated with low noise amplifier is designed. It acts as an interconnect between waveguide antenna and RF receiver modules. The transition design consists of standard waveguide WR62, a cavity for the low noise amplifier and a solid transformer section in the form of a staircase called ridge. The ridge is fixed in the bottom wall of a waveguide with the help of a screw. The centre conductor of a coaxial connector is brought near this transformer but doesn`t touch the transformer; these elements together with the back of the staircase and an adjacent portion of the bottom wall define a magnetic field coupling loop. This design methodology gives us narrow bandwidth of 500MHz at Ku-band and hence eliminates the need for a filter in receiver section for specific applications.

Page(s): 140-143

DOI: DOI not available

Published: Journal: Proceedings 6th International Bhurban Conference on Applied Sciences and Technology , Volume: 2, Issue: 0, Year: 2009

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