The effects of the mitres and air-bridge dimensions and locations on coplanar waveguide (CPW) 90° bends are investigated using the moment method. An experiment is conducted to verify the accuracy of our calculations. These show that the CPW bends are mainly affected by the air-bridge height and location not the mitering.

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Conference Proceedings of the 1993 IEEE MTT-S International Symposium on Circuits and Systems, Part 4 (of 4)
Omar, A.A., Chow, Y.L., Roy, L, & Stubbs, M.G. (1993). Effects of air-bridges and mitering on coplanar waveguide 90° bends: theory and experiment. In IEEE MTT-S International Microwave Symposium Digest (pp. 823–826).