volume | PIER Journals

2013-10-21

The Squarax Spatial Power Combiner

Alberto Leggieri,

Dr. Alberto Leggieri

Dipartimento di Ingegneria Elettronica

Università degli Studi di Roma

Italia

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Giancarlo Orengo,

Dr. Giancarlo Orengo

Dipartimento di Ingegneria Elettronica

Universita degli Studi di Roma

Italy

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Davide Passi,

Dr. Davide Passi

Dipartimento di Ingegneria Elettronica Via del Politecnico

Università degli Studi di Roma

Italia

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Franco Di Paolo

Dr. Franco Di Paolo

Univ Roma Tor Vergata

Italy

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Progress In Electromagnetics Research C, Vol. 45, 43-55, 2013

doi:10.2528/PIERC13090404

Abstract

A broad-band transmission line spatial power combiner (SPC) is proposed in this paper, which uses a square coaxial (Squarax) transmission line (TL). This structure has some advantages over the traditional circular coaxial spatial power combiner, which have been described in this paper. Fin-Line to microstrip transitions are inserted into the Squarax TL, in order to allow an easy integration of Monolithic Microwave Integrated Circuit (MMIC) Solid State Power Amplifier (SSPA). The Squarax SPC geometry allows the feeding of a higher number of MMIC than in a Waveguide SPC, so that this structure ensures high power outputs and small sizes, together with theoretical DC frequency cut-off. In this work, the design and simulation of a passive 4-18 GHz Squarax SPC are reported.

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Alberto Leggieri, Giancarlo Orengo, Davide Passi, and Franco Di Paolo, "The Squarax Spatial Power Combiner," Progress In Electromagnetics Research C, Vol. 45, 43-55, 2013.
doi:10.2528/PIERC13090404

References

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