| Author(s): |
Mike Elsbury; Paul D. Dresselhaus; Samuel P. Benz; Zoya Popovic; |
| Title: |
Integrated Broadband Lumped-Element Symmetrical-Hybrid N-way Power Dividers |
| Published: |
June 07, 2009 |
| Abstract: |
This paper presents a monolithically-integrated, broadband, lumped-element, symmetrical-hybrid power divider centered at 20 GHz which was designed and fabricated to uniformly distribute power to arrays of Josephson junctions for superconducting voltage standards. This solution achieves a ten-fold decrease in chip area, and a two-fold increase in bandwidth when compared to a standard distributed 180-degree-hybrid by utilizing LC Pi sections and a coplanar-waveguide phase inverter instead of transmission lines. A single divider demonstrates 0.5 dB maximum insertion loss, and a 1.5:1 VSWR bandwidth of 13-23 GHz. An eight-way, three-level, binary, power divider network is characterized in a divider/attenuator/combiner back-to-back measurement configuration with a 20 dB match bandwidth from 11.5-21.5 GHz. In the 15-22 GHz band of interest, the maximum insertion loss for the sixteen-way divider network is 1.0 dB, with an average of 0.5 dB. |
| Conference: |
International Microwave Symposium 2009 |
| Proceedings: |
IEEE MTT-S International Microwave Symposium Digest |
| Pages: |
pp. 997 - 1000 |
| Location: |
Boston, MA |
| Dates: |
June 7-13, 2009 |
| Keywords: |
Cryogenic electronics; Josephson arrays; lumped-element microwave circuits; microwave integrated circuits; power dividers; superconducting coils; superconducting microwave devices; superconducting integrated circuits. |
| Research Areas: |
Superconducting Electronics, Electromagnetics |
| PDF version: |
 Click here to retrieve PDF version of paper (617KB) |
