Accession Number:

AD1041847

Title:

A Cascaded Self-Similar Rat-Race Hybrid Coupler Architecture and its Compact Ka-Band Implementation

Descriptive Note:

Conference Paper

Corporate Author:

Georgia Institute of Technology Atlanta United States

Personal Author(s):

• Garay,Edgar F.
• Huang,Min-Yu
• Wang,Hua

Report Date:

2017-03-01

Pagination or Media Count:

4.0

Abstract:

We present a cascaded rat-race coupler architecture that performs broadband in-phase and differential signal generation while maintaining a very compact passive structure size. A proof-of-concept 24-42GHz 2nd order cascaded rat-race coupler is implemented in the Global foundries 45nm CMOS SOI process. Based on 3Dfull-wave electromagnetic EM modeling and simulations, the cascaded rat-race design achieves a less-than 5 phase error, less-than 1dB magnitude mismatch, an average insertion loss of only 2.5dB, and better-than -10dB input matching across the entire Ka-band.

Descriptors:

• insertion loss
• ka band
• bandwidth
• frequency bands
• simulations
• beam steering
• network topology
• integrated circuits
• antenna arrays
• inductors
• energy efficiency

Subject Categories:

• Electrical and Electronic Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE