Superconducting 4–8 GHz IF Hybrid for Low Noise mm-Wave Sideband Separation SIS Receiver
Journal article, 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

Author

Bhushan Billade

Chalmers, Earth and Space Sciences, Advanced Receiver Development

Hawal Marouf Rashid

Chalmers, Earth and Space Sciences, Advanced Receiver Development

Vincent Desmaris

Chalmers, Earth and Space Sciences, Advanced Receiver Development

Victor Belitsky

Chalmers, Earth and Space Sciences, Advanced Receiver Development

IEEE Microwave and Wireless Components Letters

1531-1309 (ISSN)

Vol. 22 11 589-591

Infrastructure

Onsala Space Observatory

Nanofabrication Laboratory

Subject Categories

Electrical Engineering, Electronic Engineering, Information Engineering

DOI

10.1109/LMWC.2012.2222363

More information

Created

10/7/2017