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Computing return loss for arbitrary scan directions using limited scan codes for infinite phase arrays
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- Ellgardt, Anders, 1978- (author)
- KTH,Elektroteknisk teori och konstruktion
- (creator_code:org_t)
- Institution of Engineering and Technology (IET), 2009
- 2009
- English.
- In: Electronics Letters. - : Institution of Engineering and Technology (IET). - 0013-5194 .- 1350-911X. ; 45:13, s. 660-662
- Journal article (peer-reviewed)
Abstract
Subject headings
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- Analyzing large phased array antennas using time domain codes is favourable when looking into wideband solutions. This is often done by assuming an infinite array, i.e. a unit cell approach is used. Unfortunately, unit cell based time domain codes using time shifts between cell boundaries have a disadvantage of only being able of analyzing phase shifts corresponding to a beam scanned in the visible space. However, in order to fully characterize the infinite array antenna it is sometimes necessary to compute the active reflection coefficient also for scan directions/phase shifts corresponding to invisible space. Presented in this letter is a new approach on how to do this in a simple manner using unit cell based time domain codes. By extending the size of the computational domain, and include more than one element, phase shifts corresponding to invisible space are included.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Annan elektroteknik och elektronik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Other Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)
Keyword
- PERIODIC BOUNDARY-CONDITIONS
- Electric power engineering
- Elkraftteknik
Publication and Content Type
- ref (subject category)
- art (subject category)
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