Realization of Wide Band Waveguide Terminations at KuBand
Keywords:
Microwave, reflection coefficient, waveguide terminationAbstract
The present paper describes the design and development of wide band matched waveguide terminations for high power (< 100 Watt) and low power (< 10 watts) applications at Ku-band. The WR-62 rectangular waveguide, lossy Eccosorb dielectric material and metallic short has been used to realize the termination. Two configurations of waveguide terminations i.e. conical tapered and wedge tapered have been developed using lossy dielectric. The waveguide termination has been simulated on full wave ANSYS's High-Frequency Structure Simulator. The developed waveguide terminations have voltage standing wave ratio less than 1.25 over the 12.5 to 15.5 GHz frequency band of the antenna.
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References
D. M. Pozar, Microwave Engineering, 3rd ed. John Wiley & Sons, 2005.
F. J. Monge, J. Esteban, and J. Zapata, Finite elements and evolution programs for the CAD of broadband rectangularwaveguide h-plane matched loads, Microwave and Optical Technology Letters, vol. 31, no. 6, pp. 491–494, 2001.
Stander, P.V. der Walt, P. Meyer, and W. Steyn, A comparison of simple low-power wedge-type X-band waveguide absorbing load implementations, AFRICON 2007. DOI: 10.1109/AFRCON.2007.4401506.
Y. Arbaoui, V. Laur, A. Maalouf, P. Quéffélec, D. Passerieux, A. Delias, and P. Blondy., Full 3-D printed microwave termination: A simple and low-cost solution, IEEE
Transactions on Microwave Theory Techniques, vol. 64, no. 1, pp. 271−278, Jan. 2016.
H. Komori and Y. Konishi, Wide band electromagnetic wave absorber with thin magnetic layers, IEEE Transactions on Broadcasting, vol. 40, no. 4, pp. 219–222, 1994.
V. Petrov and V. Gagulin, Microwave absorbing materials, Inorganic Materials, vol. 37, no. 2, pp. 93–98, 2001.
F. Ding, Y. Cui, X. Ge, Y. Jin, and S. He, Ultrabroadband microwave metamaterial absorber, Applied Physics Letters, vol. 100, pp. 103506, 2012.
H. Chen, W. Che, Q. Li, C. Gu, and K. Wu, Substrate-integrated waveguide matching terminations with microwave absorbing material, Electronics Letters, vol. 50, no. 17, pp. 1216-1218, Aug. 2014.
