Tuning periodic surfaces with piezoelectric actuators
Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
Authors
Colleges, School and Institutes
External organisations
- School of Electronic, Electrical and Computer Engineering, University of Birmingham
Abstract
A periodic surface with tunable phase response is presented here for operation at around 60GHz. The tuning is achieved by means of piezoelectric actuators. The periodic surface consists of a two dimensional square loop metallic elements array printed on a 0.8mm thick dielectric substrate. It is placed at close proximity (50um) over a ground plane creating an air cavity and acting as a High Impedance Surface (HIS). The actuators are employed to produce a displacement between the periodic surface and the ground plane which in turn changes the reflection phase response of the structure. Full wave periodic analysis has been carried out in 3D electromagnetic simulation software (CST Microwave StudioTM) to extract the reflection characteristics and evaluate the expected tuning range of the proposed structure. A phase shift of 80o degrees has been achieved at 58.5GHz for a displacement of 15um.
Details
| Original language | English |
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| Title of host publication | 8th European Conference on Antennas and Propagation, EuCAP 2014 |
| Publication status | Published - 1 Jan 2014 |
| Event | 8th European Conference on Antennas and Propagation, EuCAP 2014 - The Hague, United Kingdom Duration: 6 Apr 2014 → 11 Apr 2014 |
Conference
| Conference | 8th European Conference on Antennas and Propagation, EuCAP 2014 |
|---|---|
| Country | United Kingdom |
| City | The Hague |
| Period | 6/04/14 → 11/04/14 |
Keywords
- Periodic Surfaces, piezoelectric actuators, tunable