Design of a Nondirectional Wideband Waveguide Coupler
Wideband waveguide-based couplers have many utilities in microwave and particularly millimeter wave frequency ranges. This paper presents the design for a versatile full waveguide band nondirectional coupler used in conjunction with noncoherent single-port reflectometers, and for other pertinent applications. The design offers several parameters that once simultaneously optimized can provide a constant coupling level throughout the desired frequency band. The design procedure and simulation results for a Ka-band (26.5-40 GHz) coupler are presented. Such a coupler was then designed and constructed to operate in X-band (8.2-12.4 GHz) and the measured and simulated coupling levels show good agreement.
A. Kothari et al., "Design of a Nondirectional Wideband Waveguide Coupler," IEEE Transactions on Instrumentation and Measurement, vol. 63, no. 4, pp. 984-986, Institute of Electrical and Electronics Engineers (IEEE), Apr 2014.
The definitive version is available at https://doi.org/10.1109/TIM.2013.2297671
Electrical and Computer Engineering
Keywords and Phrases
Coupling Level; Millimeter Wave Coupler; Nondirectional Coupler; Waveguide Coupler; Wideband Coupler; Frequency Bands; Design Procedure; Ka Band
International Standard Serial Number (ISSN)
Article - Journal
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