Bending Effect of an Inkjet-Printed Series-Fed Two-Dipole Antenna on a Liquid Crystal Polymer Substrate

Author

Hsuan-ling Kao ; Cheng-Lin Cho ; Xiu Yin Zhang ; Li-Chun Chang ; Bai-Hong Wei ; Xin Dai ; Hsien-Chin Chiu

Author_Institution

Dept. of Electron. Eng., Chang Gung Univ., Taoyuan, Taiwan

Volume

13

fYear

2014

fDate

2014

Firstpage

1172

Lastpage

1175

Abstract

This letter presents a series-fed two-dipole antenna fabricated on a flexible liquid crystal polymer (LCP) substrate by using inkjet printing technology. The proposed antenna consists of two modified dipole elements of distinct lengths, a director element, a modified ground plane, and a balun filter, yielding a wide bandwidth with bandpass responses. The proposed antenna can be used at a frequency band of 26-32 GHz. The bending behaviors of the antennas with and without director elements were analyzed. The bending effect of the antenna should be considered when calculating the gain loss and bandwidth reduction. Inkjet printing on LCP substrates provides a low-cost, compact, and flexible packaging application that can be used in probable and flexible communication technology.

Keywords

baluns; band-pass filters; bending; dipole antennas; ink jet printing; liquid crystal polymers; microwave antennas; millimetre wave antennas; LCP substrates; balun filter; bandpass responses; bandwidth reduction; bending effect; compact packaging; dipole elements; flexible liquid crystal polymer substrate; flexible packaging application; frequency 26 GHz to 32 GHz; inkjet-printed series-fed two-dipole antenna; low-cost packaging; Antenna measurements; Dipole antennas; Impedance matching; Printing; Substrates; Antenna; bending; inkjet printed; liquid crystal polymer (LCP);

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2014.2330819

Filename

6840965