Design of Printed Monopole Antennas on Liquid Crystal Polymer Substrates
Journal article, 2010

In this paper, a compact printed monopole antenna with an extremely wide bandwidth has been realized on Liquid Crystal Polymer (LCP) substrates by using standard processing technology. Both laminated and directed metalized LCP substrates were used in this experiment. The antenna made on the direct metalized LCP substrate performed well compared to on the laminated LCP substrate. To improve the adhesion, the surface of the LCP was further roughened and a certain adhesion layer was used prior to the deposition of Cu. The measured antenna on a metalized LCP substrate could cover this frequency band with an impedance bandwidth from 0.51 GHz to 14.4 GHz (28.2:1) for VSWRa parts per thousand currency sign2. Moreover, the antenna exhibits a nearly omni-directional radiation pattern. The size of this antenna is only about 0.18 lambda(1) x 0.13 lambda(1), where lambda(1) is the wavelength of the lowest operating frequency. The results show that LCP is a promising candidate for high frequency applications.


Reactive ion etching

extremely wide bandwidth

Liquid crystal polymer

Printed monopole

Extremely wide bandwidth


Xia Zhang

Chalmers, Applied Physics, Electronics Material and Systems Laboratory

X. Yan

Ocean University of China

Johan Liu

Chalmers, Applied Physics, Electronics Material and Systems Laboratory

Jian Yang

Chalmers, Signals and Systems, Communication and Antenna Systems, Antennas

James E. Morris

Portland State University

Journal of Infrared, Millimeter, and Terahertz Waves

1866-6892 (ISSN)

Vol. 31 4 469-480

Areas of Advance

Information and Communication Technology

Nanoscience and Nanotechnology (2010-2017)

Subject Categories

Electrical Engineering, Electronic Engineering, Information Engineering

Signal Processing



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