Triple‐band compact monopole antenna with modified SS‐CML units loading

Abstract

Triple‐band compact monopole antenna with SS‐CML units loading is proposed in this article. On the basis of mathematical analysis to equal electrical length SS‐CML unit, extended analysis to the unequal case is done. The design method is presented by CRLH‐TL theory. The multifrequency performance of the antenna by changing the current phase through the monopole is achieved. Simulated results show that the antenna can operate at three separate frequency bands of 1.36–1.69 GHz 2.17–2.59 GHz, and 3.38–3.83 GHz, with return loss less than −10 dB. Measurements and EM simulations are in good agreement with the theoretical analysis. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:152–158, 2014

Microstrip antenna miniaturization with fractal EBG and SRR loads for linear and circular polarizations

“…So many researches have been done on antenna miniaturization and various methods have been used for designing small antennas such as loaded antennas with lumped elements. The application of high dielectric constant materials [5], the application of slotted ground and short circuit [6], the optimal antenna geometry [7], the fractal antenna [8], and using of the composite right/left-handed (CRLH)-TL technique [9] are noticed for miniaturization. Electromagnetic band gap (EBG) structures are well-known metamaterial with a periodic structure that consists of metal or dielectric elements, which are showing the band pass or band stop characteristics [10].…”