Active reconfigurable antenna design

Shen, Long (2021). Active reconfigurable antenna design. University of Birmingham. Ph.D.

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Abstract

Antenna design plays a vital role in the next generation communication systems. The enormous improvement in general communication technologies and the growth in application scenarios have driven demand for multi-functional wireless communication in a single device.

In this thesis, a novel antenna reconfiguration approach is introduced, which can be implemented in different antenna models. The so-called injection matching technique allows the second port to insert current to the antenna, which offers a direct electronic control to the antenna reconfiguration. Incorporating other antenna design approaches into this method, several performance characteristics, including wideband mode, high efficiency, and frequency tunability, can be achieved. A tunable coherent feeding system for supporting the injection matched antenna is designed based on the phase-locked loop structure. Measured and simulated results with a very good agreement are presented, thus verifying the proposed concepts.

Type of Work:

Thesis (Doctorates > Ph.D.)

Award Type:

Doctorates > Ph.D.

Supervisor(s):