A 1-to-2.5GHz phased-array IC based on gm-RC all-pass time-delay cells

S.K. Garakoui; Eric A.M. Klumperink; Bram Nauta; Frank Edward van Vliet

doi:10.1109/ISSCC.2012.6176938

A 1-to-2.5GHz phased-array IC based on gm-RC all-pass time-delay cells

S.K. Garakoui, Eric A.M. Klumperink, Bram Nauta, Frank Edward van Vliet

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

34 Citations (Scopus)

246 Downloads (Pure)

Abstract

Abstract Electronically variable delays for beamforming are generally realized by phase shifters. Although a constant phase shift can approximate a time delay in a limited frequency band, this does not hold for larger arrays that scan over wide angles and have a large instantaneous bandwidth. In this case true time delays are wanted to avoid effects such as beam-squinting. In this paper we aim at compactly integrating a delay based phased-array receiver in standard CMOS IC technology. This is for instance relevant for synthetic aperture radars, which require large instantaneous bandwidths often in excess of 1GHz, either as RF or as IF bandwidth in a superheterodyne system. We target low-GHz radar frequencies, assuming sub-arrays of four elements and up to 550ps delay.

Original language	English
Title of host publication	IEEE International Solid-State Circuits Conference Digest of Technical Papers (ISSCC 2012)
Place of Publication	Piscataway
Publisher	IEEE
Pages	80-82
Number of pages	3
ISBN (Print)	978-1-4673-0376-7
DOIs	https://doi.org/10.1109/ISSCC.2012.6176938
Publication status	Published - 20 Feb 2012
Event	IEEE International Solid-State Circuits Conference, ISSCC 2012 - San Francisco, United States Duration: 19 Feb 2012 → 23 Feb 2012

Conference

Conference	IEEE International Solid-State Circuits Conference, ISSCC 2012
Abbreviated title	ISSCC
Country/Territory	United States
City	San Francisco
Period	19/02/12 → 23/02/12

Keywords

METIS-286345
EWI-21814
IR-80301

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10.1109/ISSCC.2012.6176938

Garakoui_ISSCC_2012Accepted author version, 1.11 MB

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title = "A 1-to-2.5GHz phased-array IC based on gm-RC all-pass time-delay cells",

abstract = "Abstract Electronically variable delays for beamforming are generally realized by phase shifters. Although a constant phase shift can approximate a time delay in a limited frequency band, this does not hold for larger arrays that scan over wide angles and have a large instantaneous bandwidth. In this case true time delays are wanted to avoid effects such as beam-squinting. In this paper we aim at compactly integrating a delay based phased-array receiver in standard CMOS IC technology. This is for instance relevant for synthetic aperture radars, which require large instantaneous bandwidths often in excess of 1GHz, either as RF or as IF bandwidth in a superheterodyne system. We target low-GHz radar frequencies, assuming sub-arrays of four elements and up to 550ps delay.",

keywords = "METIS-286345, EWI-21814, IR-80301",

author = "S.K. Garakoui and Klumperink, {Eric A.M.} and Bram Nauta and {van Vliet}, {Frank Edward}",

year = "2012",

month = feb,

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doi = "10.1109/ISSCC.2012.6176938",

language = "English",

isbn = "978-1-4673-0376-7",

pages = "80--82",

booktitle = "IEEE International Solid-State Circuits Conference Digest of Technical Papers (ISSCC 2012)",

publisher = "IEEE",

address = "United States",

note = "IEEE International Solid-State Circuits Conference, ISSCC 2012, ISSCC ; Conference date: 19-02-2012 Through 23-02-2012",

}

Garakoui, SK, Klumperink, EAM , Nauta, B & van Vliet, FE 2012, A 1-to-2.5GHz phased-array IC based on gm-RC all-pass time-delay cells. in IEEE International Solid-State Circuits Conference Digest of Technical Papers (ISSCC 2012). IEEE, Piscataway, pp. 80-82, IEEE International Solid-State Circuits Conference, ISSCC 2012, San Francisco, California, United States, 19/02/12. https://doi.org/10.1109/ISSCC.2012.6176938

A 1-to-2.5GHz phased-array IC based on gm-RC all-pass time-delay cells. / Garakoui, S.K.; Klumperink, Eric A.M.; Nauta, Bram et al.
IEEE International Solid-State Circuits Conference Digest of Technical Papers (ISSCC 2012). Piscataway: IEEE, 2012. p. 80-82.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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AU - van Vliet, Frank Edward

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N2 - Abstract Electronically variable delays for beamforming are generally realized by phase shifters. Although a constant phase shift can approximate a time delay in a limited frequency band, this does not hold for larger arrays that scan over wide angles and have a large instantaneous bandwidth. In this case true time delays are wanted to avoid effects such as beam-squinting. In this paper we aim at compactly integrating a delay based phased-array receiver in standard CMOS IC technology. This is for instance relevant for synthetic aperture radars, which require large instantaneous bandwidths often in excess of 1GHz, either as RF or as IF bandwidth in a superheterodyne system. We target low-GHz radar frequencies, assuming sub-arrays of four elements and up to 550ps delay.

AB - Abstract Electronically variable delays for beamforming are generally realized by phase shifters. Although a constant phase shift can approximate a time delay in a limited frequency band, this does not hold for larger arrays that scan over wide angles and have a large instantaneous bandwidth. In this case true time delays are wanted to avoid effects such as beam-squinting. In this paper we aim at compactly integrating a delay based phased-array receiver in standard CMOS IC technology. This is for instance relevant for synthetic aperture radars, which require large instantaneous bandwidths often in excess of 1GHz, either as RF or as IF bandwidth in a superheterodyne system. We target low-GHz radar frequencies, assuming sub-arrays of four elements and up to 550ps delay.

KW - METIS-286345

KW - EWI-21814

KW - IR-80301

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M3 - Conference contribution

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BT - IEEE International Solid-State Circuits Conference Digest of Technical Papers (ISSCC 2012)

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T2 - IEEE International Solid-State Circuits Conference, ISSCC 2012

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ER -

A 1-to-2.5GHz phased-array IC based on gm-RC all-pass time-delay cells

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Keywords

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