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Partially filled radial power combiner with port isolation
Thesis (PhD)--Stellenbosch University, 2020.
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
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Stellenbosch : Stellenbosch University
2020
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| _version_ | 1867613999941550080 |
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| access_status_str | Open Access |
| author | Du Toit, Hendrik J. |
| author2 | De Villiers, D. I. L. |
| author_browse | De Villiers, D. I. L. Du Toit, Hendrik J. |
| author_facet | De Villiers, D. I. L. Du Toit, Hendrik J. |
| author_sort | Du Toit, Hendrik J. |
| collection | Thesis |
| dc_rights_str_mv | Stellenbosch University |
| description | Thesis (PhD)--Stellenbosch University, 2020. |
| format | Thesis |
| id | oai:scholar.sun.ac.za:10019.1/108140 |
| institution | Stellenbosch University (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:45:04.096Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository |
| publishDate | 2020 |
| publishDateRange | 2020 |
| publishDateSort | 2020 |
| publisher | Stellenbosch : Stellenbosch University |
| publisherStr | Stellenbosch : Stellenbosch University |
| record_format | dspace |
| source_str | SUNScholar — Stellenbosch University Repository |
| spelling | oai:scholar.sun.ac.za:10019.1/108140 Partially filled radial power combiner with port isolation Du Toit, Hendrik J. De Villiers, D. I. L. Stellenbosch University. Faculty of Engineering. Dept. of Electrical and Electronic Engineering. Coaxial cables Radial transmission line Power combiners Electric power distribution Radial power combiners Power transmission UCTD Thesis (PhD)--Stellenbosch University, 2020. ENGLISH ABSTRACT: This dissertation documents the design and testing of a partially filled radial power combiner with a passive peripheral isolation network, at 4 GH'. A review of available literature on power combiners highlights the advantages of radial combiners. The theory of radial transmission lines is presented, and such a power combiner without an isolation network is designed first. A printed circuit board is utilised at the bottom of the radial line cavity to aid in transitions at the central and peripheral ports. The centre transition into a coaxial connector consists of a shunt capacitance realised by an annular ring on the PCB. This also acts as a base for the coaxial connector. At the periphery, inductive posts couple energy from the radial cavity into microstrip lines. This approach is taken for compatibility with the ensuing planar passive isolation network at the peripheral ports. Broadside hybrid quadrature couplers are arranged around two almost identical radial combiners to implement the isolation. AFRIKAANSE OPSOMMING: Hierdie proefskrif beskryf die ontwerp en toets van ‘n gedeeltelik gevulde radiale kombineerder met n passiewe isolasie netwerk, by 4 GHz. Die voordele van radiale kombineerders blyk uit die oorsig van beskikbare literatuur. Na ‘n uitleg van die betrokke teorie word n poging aangewend om eerstens ‘n radiale kombineerder te ontwerp sonder die isolasie netwerk. Die middel konnektor termineer op ‘n koper ring, uitgeëts op n dielektriese substraat. Daar word gebruik gemaak van induktiewe penne en mikrostrook lyne by die poorte aan die omtrek van die kombineerder. Sodoende is die kombineer gepas vir uitbreiding met ‘n planêre isolasie netwerk. Die netwerk bestaan uit ‘n rangskikking van 3-dB breësy kwadratuurkoppelaars wat twee eenderse radiale kombineerders aanmekaar haak. Doctoral 2020-02-24T09:32:41Z 2020-04-28T12:21:35Z 2020-02-24T09:32:41Z 2020-04-28T12:21:35Z 2020-03 Thesis http://hdl.handle.net/10019.1/108140 en Stellenbosch University xii, 101 leaves : illustrations (some color) application/pdf Stellenbosch : Stellenbosch University |
| spellingShingle | Coaxial cables Radial transmission line Power combiners Electric power distribution Radial power combiners Power transmission UCTD Du Toit, Hendrik J. Partially filled radial power combiner with port isolation |
| title | Partially filled radial power combiner with port isolation |
| title_full | Partially filled radial power combiner with port isolation |
| title_fullStr | Partially filled radial power combiner with port isolation |
| title_full_unstemmed | Partially filled radial power combiner with port isolation |
| title_short | Partially filled radial power combiner with port isolation |
| title_sort | partially filled radial power combiner with port isolation |
| topic | Coaxial cables Radial transmission line Power combiners Electric power distribution Radial power combiners Power transmission UCTD |
| url | http://hdl.handle.net/10019.1/108140 |
| work_keys_str_mv | AT dutoithendrikj partiallyfilledradialpowercombinerwithportisolation |