Abstract
This paper proposes a modified Co-Planar Waveguide (CPW) transmission line with Periodic Defected Ground Structures which can be used as a high-speed microwave channel for embedded antennas. CPW ground surface is modified by making slots of various shapes. The modified CPW channels are found suitable for Wi-MAX applications and a particular shape of DGS unit cell can be selected depending on the bandwidth requirement. The CPW transmission line with circular shaped DGS cells of two columns offer a remarkable value of the transmission coefficient of 0.89022 (− 1.01 dB) therefore it is fabricated and tested. It is observed that both the simulated and tested results agree with each other.
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