Design and characterization of a UHF diplexer/antenna combination

Zheng, Zhiyuan

Permalink

https://hdl.handle.net/2142/92680 Copy

Description

Title

Design and characterization of a UHF diplexer/antenna combination

Author(s)

Zheng, Zhiyuan

Issue Date

2016-07-22

Director of Research (if dissertation) or Advisor (if thesis)

Minin, Serge

Department of Study

Electrical & Computer Eng

Discipline

Electrical & Computer Engr

Degree Granting Institution

University of Illinois at Urbana-Champaign

Degree Name

M.S.

Degree Level

Thesis

Keyword(s)

• Microwave circuit design
• Wireless communication

Abstract

Wireless communication systems are important in modern day life. Applications of wireless communication systems are used everywhere around the world, such as cell phones, wireless entertainments, satellites and navigation services. Because of the high volume usage of various wireless signals' spectra, it is desired to design systems that can accept the frequencies of multiple signals. A combination of antenna and diplexers can achieve such functionality. With antennas operating in dual frequency and diplexers which separate the signals, dual-frequency signals can be effectively transferred through the wireless communication systems simultaneously. In this thesis, we simulate and characterize the behavior of antenna and diplexer functioning in dual frequency. For the antenna, a mathematical analysis and a circuit model analysis were conducted to replicate its behavior. On the other hand, several circuit designs and simulations have been performed for diplexers. Moreover, an initial implementation of a single-order diplexer is also discussed. After the measurement, we found reasonable results for the functionality of a single-order diplexer. We believe that this first step gives us a correct route to our final implementation goal. In the future, more implementation tasks can also be discussed. In addition to the implementation of a first-order diplexer, higher-order diplexers constructed on printed circuited board (PCB) can also be developed. Moreover, an implementation of a combinational matching network construction between antenna and diplexer can also be discussed.

Graduation Semester

2016-08

Type of Resource

text

Permalink

http://hdl.handle.net/2142/92680

Copyright and License Information

Copyright 2016 Zhiyuan Zheng

Owning Collections