Accession Number:

AD1052231

Title:

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

Descriptive Note:

Conference Paper

Corporate Author:

University of Michigan Dept. of Electrical Engineering and Computer Science Ann Arbor, MI United States

Personal Author(s):

• Flynn,Michael
• Jang,Sunmin
• Jeong,Jaehun
• Lu,Rundao

Report Date:

2018-03-12

Pagination or Media Count:

4.0

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.

Descriptors:

• beam forming
• prototypes
• complementary metal oxide semiconductor

Subject Categories:

• Electrical and Electronic Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE