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Experimental Validation of a Bespoke Lens for a Slot Log-Spiral Feed
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- Ebrahimpouri, Mahsa (author)
- KTH,Elektroteknisk teori och konstruktion
-
- Zetterström, Oskar (author)
- KTH,Elektroteknisk teori och konstruktion
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- Quevedo-Teruel, Oscar (author)
- KTH,Elektroteknisk teori och konstruktion
- (creator_code:org_t)
- Institute of Electrical and Electronics Engineers (IEEE), 2020
- 2020
- English.
- In: IEEE Antennas and Wireless Propagation Letters. - : Institute of Electrical and Electronics Engineers (IEEE). - 1536-1225 .- 1548-5757. ; 19:4, s. 557-560
- Journal article (peer-reviewed)
Abstract
Subject headings
Close
- In this letter, we experimentally validate the concept of bespoke lenses for the specific design of a log-spiral feed. Bespoke lenses are designed using the concept of quasi-conformal transformation optics (QCTO) to enhance the radiation properties for a given feeding. Our experimental results demonstrate that the antenna with its bespoke lens has higher gain, lower cross polarization, lower sidelobes, and lower axial ratio than that with a conventional hyperhemispherical lens.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Telekommunikation (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Telecommunications (hsv//eng)
Keyword
- Bespoke lenses
- graded-index lens
- quasi-conformal transformation
- slot log-spiral feed
- transformation optics (TO)
- Conformal mapping
- Lens antennas
- Axial ratio
- Conformal transformation
- Cross polarizations
- Experimental validations
- Radiation properties
- Side lobes
- Antenna feeders
Publication and Content Type
- ref (subject category)
- art (subject category)
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