Abstract

In this paper, a new compact coplanar waveguide (CPW)-fed liquid crystal polymer (LCP) based tri-band antenna is presented and fabricated for Wireless Local Area Network (WLAN), Worldwide Interoperability for Microwave Access (WiMAX) and 5th-Generation (5G) systems. The antenna combines two strips with the main radiation rectangular patch and coplanar waveguide ground. The proposed antenna is printed on a LCP substrate with a thickness of 0.1 mm and has a small overall dimensions of 20mm×32mm×0.1mm. To analyze the characteristics, the antenna is designed and fabricated, and then the performance of the antenna is measured and tested. The measurement results show that the proposed antenna has three operating bandwidths, including 2.38-2.79 GHz, 3.27-4.05 GHz, and 4.80-8.44 GHz. To test the flexibility of the antenna, the antenna is simulated and measured in bent configurations for radii of 10 mm and 50 mm. In addition, the antenna is attached to different parts of the human body to test the integration effect in wearable equipment. The experimental results show that the performance of the antenna remains reliable under bending conditions and that the specific absorption ratio (SAR) value meets the European Union (EU) standard. The proposed antenna shows reasonable gains and good radiation characteristics in the operating bands. The flexible, compact, simple design and multiband performance indicates that the antenna is suitable for integration in flexible electronic devices.

Highlights

  • Wireless communication systems have been developing rapidly in recent years, and planar printed antennas have attracted extensive attention in academic and industrial circles due to their small size, light weight, simple processing, and easy integration [1]

  • Multifrequency antennas for wireless systems used in Wireless Local Area Network (WLAN) and Worldwide Interoperability for Microwave Access (WiMAX) are an important application in these research areas

  • A new compact coplanar waveguide (CPW)-fed liquid crystal polymer (LCP) based tri-band antenna is presented for WLAN, WiMAX and 5G applications

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Summary

INTRODUCTION

Wireless communication systems have been developing rapidly in recent years, and planar printed antennas have attracted extensive attention in academic and industrial circles due to their small size, light weight, simple processing, and easy integration [1]. A new compact coplanar waveguide (CPW)-fed LCP based tri-band antenna is presented for WLAN, WiMAX and 5G applications. The overall size of the antenna is 20mm×32mm×0.1mm, and the antenna is printed on a 0.1 mm LCP substrate, which means that the antenna is smaller than the traditional rigid antenna and can work in the bending state It is fed by a CPW for good impedance matching and larger working bandwidth. Both the radiation patch and the ground plane are designed on the same side of the LCP substrate, which helps to improve the antenna integration and reduce the manufacturing cost.

ANTENNA DESIGN AND ANALYSIS
ANTENNA PERFORMANCES
CONCLUSION
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