Show/Hide Menu
Hide/Show Apps
anonymousUser
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Frequently Asked Questions
Frequently Asked Questions
Browse
Browse
By Issue Date
By Issue Date
Authors
Authors
Titles
Titles
Subjects
Subjects
Communities & Collections
Communities & Collections
Analysis and design of active annular ring coupled circular patch antenna
Download
index.pdf
Date
2017
Author
Gebeşoğlu, Durmuş
Metadata
Show full item record
Item Usage Stats
5
views
2
downloads
This thesis includes the design, production and measurement of the active, dual band annular ring coupled circular patch antenna. The dual band operation is achieved by using stacked patches. 3 dB hybrid is used to obtain circular polarization. Effects of antenna parameters on the input impedance and frequency ratio between the resonance frequencies are observed. Design has been achieved step by step. Firstly, dual band operation is investigated by using stacked patches. An annular ring antenna and a circular patch antenna are stacked to achieve dual band characteristic. Parametric analyzes are done in electromagnetic solver tool HFSS ®. The final antenna structure is revealed with parametric analyzes. After that, it is focused on to obtain circular polarization. 3 dB hybrid is designed in HFSS ®. The designed hybrid and antenna are combined. Circular polarization is realized by using 3 dB hybrid. At last, an attention is given to make the antenna active. Active circuit of the antenna is created in AWR Design Environment ®. The designed active dual band annular ring coupled circular patch antenna is manufactured and measured. The results of simulations and measurements are compared. Good agreements are observed between simulated and measured results.
Subject Keywords
Antennas (Electronics).
,
Aperture antennas.
,
Microstrip antennas.
,
Global Positioning System.
URI
http://etd.lib.metu.edu.tr/upload/12620927/index.pdf
https://hdl.handle.net/11511/26413
Collections
Graduate School of Natural and Applied Sciences, Thesis