Study on the CPWG Antenna of 1.8GHz

Title & Authors
Study on the CPWG Antenna of 1.8GHz
Park, Yong Wook;

Abstract
In this study, the properties of a patch antenna fed by a coplanar waveguide with ground (CPWG) and design method were studied. The antenna was impedance-matched to the CPWG feedline by adjusting the width, length, and position of the patch. To improve the frequency properties of the CPWG type antenna, patch length, patch width, patch position, and ground distance were simulated using HFSS (High Frequency Structure Simulator) simulation program. A CPWG antenna of 1.8 GHz for LTE band was designed and fabricated by photolithography on an FR4 substrate (dielectric constant of 4.4 and thickness of 0.8 mm). The fabricated antenna was analyzed using a network analyzer. The measured results agree well with the simulations, which confirmed the validity of this study. The fabricated CPWG antenna showed a center frequency, minimum return loss and -10dB bandwidth of 1.8GHz, -32.1dB, 22MHz and $\small{50.2{\Omega}}$ respectively. The proposed antenna is expected to be applicable to the LTE band.
Keywords
Antenna;CPWG(Coplanar Waveguide with Ground);FR-4;HFSS;1.8GHz;
Language
Korean
Cited by
References
1.
J-I. Kim and J. Yeo, "CPW-fed Compact Slot Antenna Matched by T-shaped Stub," JKAIS, vol. 13, no. 13, pp. 3140-3145, 2012.

2.
J-H. Lim, M-S. Lee and D-Y. Yang, "Disk Sector Antenna fed by CPW for UWB Communications," JKAIS, vol. 10, no. 2, pp. 303-312, 2009. DOI: http://dx.doi.org/10.5762/kais.2009.10.2.303

3.
Y. Kim, "Pattern-Switchable Microstrip Patch Antenna with Loop Structure," JKAIS, vol. 13, no. 11, pp. 5447-5451, 2012. DOI: http://dx.doi.org/10.5762/kais.2012.13.11.5447

4.
H. D. Chen, "Broadband CPW-fed square slot antennas with a widened stub," IEEE Trans. Antennas Propag.,vol. 51, no. 8, pp. 1982-1986, Aug. 2003. DOI: http://dx.doi.org/10.1109/TAP.2003.814747

5.
Y. W. Park, "Study on the Single Feed Antenna for 2.64 GHz", JKAIS, vol. 14, no. 2, pp. 811-815, 2013. DOI: http://dx.doi.org/10.5762/kais.2013.14.2.811

6.
C. L. Tang and K. L. Wong, "Single-feed slotted equilateral-triangular microstrip antenna for circul ar polarization," IEEE Trans. Antennas propagat., vol. 47, pp. 1174-117, 1999.

7.
A. A. Gheethan and D. E. Anagnostou, "Broadband and dual-band coplanar fold ed-slot antennas (CFSAs)," IEEE Antennas and Propagation Magazine, vol. 53, no. 1, pp. 80-89, Feb. 2011. DOI: http://dx.doi.org/10.1109/MAP.2011.5773572

8.
O. Kim, "Design of Dual-band Microstrip Antenna for Wireless Communication Applications," J. of the Korea Institute of Electronic Communication Sciences, vol. 7, no. 6, pp. 1275-1279, 2012.