Design of Coaxial Continuous Transverse Stub Antenna Array for Mobile and Space Application
M. Kumaran, Department of Electronics and Communication Engineering, Sri Venkateswara College of Engineering, Sriperumbudur, Chennai,(T.N) India.
Manuscript received on July 14, 2013. | Revised Manuscript received on August 09, 2013. | Manuscript published on August 30, 2013. | PP: 267-271 | Volume-2, Issue-6, August 2013. | Retrieval Number: F2071082613/2013©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Continuous Transverse Stub (CTS) technology with coaxial transmission line can be used for simple, light weight, low-loss microwave structures with omnidirectional radiation pattern in the horizon plane. The Coaxial CTS antenna provides low reflection with good input impedance and high radiation efficiency. This paper proposes the design of coaxial CTS antenna array operating at 2.238 GHz in S-band. The return loss (S11) at this frequency is -47.481 dB. The corresponding gain and efficiency is 5.025 dB and 92.2%. This type of antenna can be used for fixed (line of sight), mobile (line of sight) and space operation. This paper also discusses the design of the CTS antenna array in X-band. Operating at 10.548 GHz this antenna can be used for radiolocation. Return loss (S11) is got to be -34.642 dB. Radiation efficiency and gain at this frequency is 94.6% and 2.47 dB. The basic theory is analyzed. Design and optimization is done using CST Microwave Studio software. The simulation result shows the better performance in both S-band and X-band. The achieved impedance of 35 Ω doesn’t worse the result obviously.
Keywords: CTS array, Mobile, Radiolocation, Space operation, S-band, X-band.