Superconducting 4–8 GHz IF Hybrid for Low Noise mm-Wave Sideband Separation SIS Receiver
Artikel i vetenskaplig tidskrift, 2012

We present the design and performance of a superconducting 90 degree hybrid covering a full octave bandwidth from 4 to 8 GHz. The hybrid is designed using the Lange coupler layout. The novel features of this quadrature hybrid include superconducting niobium (Nb) transmission lines, air bridges to connect the fingers of the coupler and a bias-T integrated with the coupler. Our simulations indicate that the amplitude imbalance of the designed hybrid is less than 0.8 dB over the entire 4–8 GHz band with negligible phase imbalance.

Directional couplers

superconducting devices

sideband separation receivers

microwave components

thin-film circuits

Författare

Bhushan Billade

Chalmers, Rymd- och geovetenskap, Avancerad mottagarutveckling

Hawal Marouf Rashid

Chalmers, Rymd- och geovetenskap, Avancerad mottagarutveckling

Vincent Desmaris

Chalmers, Rymd- och geovetenskap, Avancerad mottagarutveckling

Victor Belitsky

Chalmers, Rymd- och geovetenskap, Avancerad mottagarutveckling

IEEE Microwave and Wireless Components Letters

1531-1309 (ISSN)

Vol. 22 589-591

Infrastruktur

Onsala rymdobservatorium

Nanotekniklaboratoriet

Ämneskategorier

Elektroteknik och elektronik

DOI

10.1109/LMWC.2012.2222363