Abstract
A compact quasi-self-complementary super-wideband (SWB) monopole antenna excited by a tapered coplanar waveguide (CPW) feed line is presented in this paper. The size of the antenna is 31 mm × 26 mm × 1.6 mm, and it can operate in the range of 1.2–35 GHz (S11 ≤ −10 dB). The WLAN and X-band based satellite communication signals are eliminated by introducing a complementary split-ring resonator (CSRR) in the radiator of the monopole antenna. The design and performance of the proposed antenna are validated by using the ANSYS HFSS® simulation tool. The peak gain is found to be 6 dB. The proposed antenna can be used in cognitive radios for spectrum sensing applications.
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