Non-leaky conductor-backed coplanar waveguide-fed microstrip patch antennas
Non-leaky conductor-backed coplanar waveguide-fed microstrip patch antennas
Microstrip patch antennas and their various existing multi-layer feeding configurations are studied and a new more useful, albeit complex feeding configuration is suggested and its full-wave analysis is presented along with the experimental verification. Simple microstrip patch antennas are analysed first and an improved treatment of microstrip patches based on the segmentation method and cavity model is presented for probe-fed and microstripline-fed patches. The full-wave analysis of microstrip patches using the moment method in spectral domain is presented for the case of probe-fed and microstripline-fed patches and the relevant Green's functions are given. The full-wave analysis of the microstripline-fed aperture coupled patch and coplanar waveguide-fed patch is also presented along with the relevant Green's functions. The drawbacks of these existing feeding configurations are noted, particularly aiming for easier integration of the patch with microwave circuits.
In view of easier integration, a conductor-backed coplanar waveguide-fed patch suggested earlier could have been highly suitable. The dangers of this arrangement, mainly the leakage of power, are pointed out with the help of full-wave analysis and modifications to avoid the leakage are studied. A particular non-leaky conductor-backed coplanar waveguide configuration is selected and utilised to excite the patch through an electrically small aperture in the back-plane. The relevant Green's functions are derived and the evaluation of complex propagation constant and characteristic impedance are given in spectral domain. The full-wave analysis of such a non-leaky conductor-backed coplanar waveguide-fed rectangular microstrip patch configuration is presented with experimental verifications. The effects of coupling aperture and slot dimensions are also studied. The advantages of this configuration over the existing ones are presented along with the scope of its applications.
University of Southampton
Jahagirdar, Dhananjay Ramchandra
1997
Jahagirdar, Dhananjay Ramchandra
Jahagirdar, Dhananjay Ramchandra
(1997)
Non-leaky conductor-backed coplanar waveguide-fed microstrip patch antennas.
University of Southampton, Doctoral Thesis.
Record type:
Thesis
(Doctoral)
Abstract
Microstrip patch antennas and their various existing multi-layer feeding configurations are studied and a new more useful, albeit complex feeding configuration is suggested and its full-wave analysis is presented along with the experimental verification. Simple microstrip patch antennas are analysed first and an improved treatment of microstrip patches based on the segmentation method and cavity model is presented for probe-fed and microstripline-fed patches. The full-wave analysis of microstrip patches using the moment method in spectral domain is presented for the case of probe-fed and microstripline-fed patches and the relevant Green's functions are given. The full-wave analysis of the microstripline-fed aperture coupled patch and coplanar waveguide-fed patch is also presented along with the relevant Green's functions. The drawbacks of these existing feeding configurations are noted, particularly aiming for easier integration of the patch with microwave circuits.
In view of easier integration, a conductor-backed coplanar waveguide-fed patch suggested earlier could have been highly suitable. The dangers of this arrangement, mainly the leakage of power, are pointed out with the help of full-wave analysis and modifications to avoid the leakage are studied. A particular non-leaky conductor-backed coplanar waveguide configuration is selected and utilised to excite the patch through an electrically small aperture in the back-plane. The relevant Green's functions are derived and the evaluation of complex propagation constant and characteristic impedance are given in spectral domain. The full-wave analysis of such a non-leaky conductor-backed coplanar waveguide-fed rectangular microstrip patch configuration is presented with experimental verifications. The effects of coupling aperture and slot dimensions are also studied. The advantages of this configuration over the existing ones are presented along with the scope of its applications.
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Published date: 1997
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Local EPrints ID: 463086
URI: http://eprints.soton.ac.uk/id/eprint/463086
PURE UUID: 86be4ae6-c5cd-4fb8-9c61-8858e2e02d2e
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Date deposited: 04 Jul 2022 20:44
Last modified: 04 Jul 2022 20:44
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Author:
Dhananjay Ramchandra Jahagirdar
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