A planar CPW-fed patch antenna on thin substrate for broadband operation of ISM-band applications

作者：Yoon Cheol^*; Kim Woo Su; Jeong Gye Taek; Choi Sun Ho; Lee Hwa Choon; Park Hyo Dal

来源：Microwave and Optical Technology Letters, 2012, 54(9): 2199-2202.

DOI：10.1002/mop.26994

• patch antenna
• CPW-fed
• ISM-band
• thin substrate
• broadband

This article presents the design and fabrication of three ISM-bands coplanar waveguide (CPW)-fed patch antenna on a thin substrate for applications within 2.4002.484, 5.1505.350, and 5.7255.825 GHz bandwidths. The prototype consists of a thin substrate and a CPW-fed patch. To obtain sufficient bandwidth with -10 dB return loss, a thin substrate layer is inserted under the ground plate and the radiator. A thin substrate CPW-fed patch that has three ISM-bands is used. Important design parameters are the radiator%26apos;s construction, width, length, the substrate height, and the CPW-fed gaps. From these optimized parameters, a CPW-fed patch antenna is fabricated and measured. The measured results of the fabricated antenna are obtained from operating bands at 4.23-GHz bandwidths with a -10 dB return loss referenced to the center frequency, and the peak gain at 3.82 dBi. The experimental radiation efficiency in both the E-plane and H-plane is shown to be a pass band total of 5082%. It is capable of covering three ISM bands at 2.4002.484 and 5.1505.350/5.7255.825 GHz, which is ideally suitable for short-range wireless applications.

• 出版日期2012-9