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A Vector Beam Measurement System for 211-275 GHz

Olle Nyström (Institutionen för radio- och rymdvetenskap, Avancerad mottagarutveckling) ; Miroslav Pantaleev (Institutionen för radio- och rymdvetenskap, Avancerad mottagarutveckling) ; Igor Lapkin (Institutionen för radio- och rymdvetenskap, Avancerad mottagarutveckling) ; Vessen Vassilev (Institutionen för radio- och rymdvetenskap, Avancerad mottagarutveckling) ; Victor Belitsky (Institutionen för radio- och rymdvetenskap, Avancerad mottagarutveckling)
Proceedings EuCAP 2006, Nice, France, 6-10 November 2006, (ESA SP-626, October 2006) (2006)
[Konferensbidrag, refereegranskat]

In this paper, we describe a novel vector measurement system for the characterization of Gaussian beams and present test results for mm-wave, 211-275 GHz, receiver optics alignment. The measurement setup allows a simpler design without any PLLs and employs a combination of a single frequency source, comb-generator, and direct multiplication LO and signal sources. The system takes advantage of different harmonics to generate the required RF and LO signals yielding the desired IF frequency while obtaining perfect phase-coherence and initial phase-noise cancellation. One of the additional advantages of the suggested measuring scheme is that it allows such design that it has the potential to cover different mm and sub-mm bands by only replacing two filters and the LO multiplication unit. For example, we plan to use the same setup, with mentioned modifications, for the frequency bands 275-370 GHz and 385-500 GHz.

Nyckelord: Gaussian beam, vector field measurements, receiver optics alignment


ISSN: 1609-042X, Article number in proceeding: 350052



Denna post skapades 2007-01-18. Senast ändrad 2014-09-02.
CPL Pubid: 25802

 

Institutioner (Chalmers)

Institutionen för radio- och rymdvetenskap, Avancerad mottagarutveckling (2005-2010)

Ämnesområden

Elektronisk mät- och apparatteknik

Chalmers infrastruktur