16 Element 1GHz Input 4 Simultaneous Beam 100MHz Bandwidth Digital Beamformer in 40nm CMOS

Abstract

A 16 element, 1GHz IF input, digital beamformer (DBF) generates four independent simultaneous beams, with 100MHz bandwidth. DBF has several advantages over analog beamforming, including higher accuracy and multiple beam generation; however, single-chip DBF has been limited due to high power consumption and large die area. A new architecture combines efficient Continuous-Time Band-Pass Delta Sigma Modulators (CTBPDSMs) with Interleaved Bit-Stream Processing (IL-BSP) to save 80% of power and -area. The measured SNR of the 16 array is 59.6dB SNR which corresponds to an 11.2dB array gain. The measured beam patterns are near ideal.

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Document Details

Document Type
Technical Report
Publication Date
Mar 12, 2018
Accession Number
AD1052231

Entities

People

  • Jae‐Hun Jeong
  • Michael O. Flynn
  • Rundao Lu
  • Sunmin Jang

Organizations

  • University of Michigan

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Acoustic Absorption
  • Anechoic Chambers
  • Antenna Arrays
  • Antennas
  • Arrays
  • Bandwidth
  • Beam Forming
  • Chambers
  • Computer Science
  • Data Rate
  • Electrical Engineering
  • Energy Consumption
  • Frequency
  • Measurement
  • Prototypes
  • Signal Processing

Fields of Study

  • Engineering
  • Physics

Readers

  • Integrated Circuit Design and Technology.
  • Phased Array Antenna Design.