Low-loss continuous true time delay with delay summing

Kyutae Park; Byung Wook Min

doi:10.1109/IMS30576.2020.9224104

Low-loss continuous true time delay with delay summing

Kyutae Park, Byung Wook Min

Department of Electrical and Electronic Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

2 Citations (Scopus)

Abstract

This paper presents a delay sum true time delay (TTD) architecture. The proposed TTD divides the input signal to two signals with different time delays, then combines them in-phase at the output port. The variable time delay can be achieved by changing the power dividing and combining ratio of the two signals. The proposed TTD can provide lower insertion loss than varactor-loaded transmission line or switched delay line TTD, since it can achieve the large and continuously controlled time delay with a compact size. Also, this paper proposes a variable power divider/combiner with an increased range of the power dividing/combining ratio. The proposed delay sum TTD is demonstrated at 2.4 GHz. The measured insertion loss is only 2.3±0.25 dB with the continuously tunable delay of 843 ps (>720°), while maintaining the impedance matching below -10dB.

Original language	English
Title of host publication	IMS 2020 - 2020 IEEE/MTT-S International Microwave Symposium
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	735-738
Number of pages	4
ISBN (Electronic)	9781728168159
DOIs	https://doi.org/10.1109/IMS30576.2020.9224104
Publication status	Published - 2020 Aug
Event	2020 IEEE/MTT-S International Microwave Symposium, IMS 2020 - Virtual, Los Angeles, United States Duration: 2020 Aug 4 → 2020 Aug 6

Publication series

Name	IEEE MTT-S International Microwave Symposium Digest
Volume	2020-August
ISSN (Print)	0149-645X

Conference

Conference	2020 IEEE/MTT-S International Microwave Symposium, IMS 2020
Country/Territory	United States
City	Virtual, Los Angeles
Period	20/8/4 → 20/8/6

Bibliographical note

Funding Information:
ACKNOWLEDGMENT This work was supported by Space Core Technology Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science and ICT (NRF-2017M1A3A3A02016255).

Publisher Copyright:
© 2020 IEEE.

All Science Journal Classification (ASJC) codes

Radiation
Condensed Matter Physics
Electrical and Electronic Engineering

Access to Document

10.1109/IMS30576.2020.9224104

Cite this

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title = "Low-loss continuous true time delay with delay summing",

abstract = "This paper presents a delay sum true time delay (TTD) architecture. The proposed TTD divides the input signal to two signals with different time delays, then combines them in-phase at the output port. The variable time delay can be achieved by changing the power dividing and combining ratio of the two signals. The proposed TTD can provide lower insertion loss than varactor-loaded transmission line or switched delay line TTD, since it can achieve the large and continuously controlled time delay with a compact size. Also, this paper proposes a variable power divider/combiner with an increased range of the power dividing/combining ratio. The proposed delay sum TTD is demonstrated at 2.4 GHz. The measured insertion loss is only 2.3±0.25 dB with the continuously tunable delay of 843 ps (>720°), while maintaining the impedance matching below -10dB.",

author = "Kyutae Park and Min, {Byung Wook}",

note = "Funding Information: ACKNOWLEDGMENT This work was supported by Space Core Technology Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science and ICT (NRF-2017M1A3A3A02016255). Publisher Copyright: {\textcopyright} 2020 IEEE.; 2020 IEEE/MTT-S International Microwave Symposium, IMS 2020 ; Conference date: 04-08-2020 Through 06-08-2020",

year = "2020",

month = aug,

doi = "10.1109/IMS30576.2020.9224104",

language = "English",

series = "IEEE MTT-S International Microwave Symposium Digest",

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Park, K & Min, BW 2020, Low-loss continuous true time delay with delay summing. in IMS 2020 - 2020 IEEE/MTT-S International Microwave Symposium., 9224104, IEEE MTT-S International Microwave Symposium Digest, vol. 2020-August, Institute of Electrical and Electronics Engineers Inc., pp. 735-738, 2020 IEEE/MTT-S International Microwave Symposium, IMS 2020, Virtual, Los Angeles, United States, 20/8/4. https://doi.org/10.1109/IMS30576.2020.9224104

Low-loss continuous true time delay with delay summing. / Park, Kyutae; Min, Byung Wook.
IMS 2020 - 2020 IEEE/MTT-S International Microwave Symposium. Institute of Electrical and Electronics Engineers Inc., 2020. p. 735-738 9224104 (IEEE MTT-S International Microwave Symposium Digest; Vol. 2020-August).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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N1 - Funding Information: ACKNOWLEDGMENT This work was supported by Space Core Technology Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science and ICT (NRF-2017M1A3A3A02016255). Publisher Copyright: © 2020 IEEE.

PY - 2020/8

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N2 - This paper presents a delay sum true time delay (TTD) architecture. The proposed TTD divides the input signal to two signals with different time delays, then combines them in-phase at the output port. The variable time delay can be achieved by changing the power dividing and combining ratio of the two signals. The proposed TTD can provide lower insertion loss than varactor-loaded transmission line or switched delay line TTD, since it can achieve the large and continuously controlled time delay with a compact size. Also, this paper proposes a variable power divider/combiner with an increased range of the power dividing/combining ratio. The proposed delay sum TTD is demonstrated at 2.4 GHz. The measured insertion loss is only 2.3±0.25 dB with the continuously tunable delay of 843 ps (>720°), while maintaining the impedance matching below -10dB.

AB - This paper presents a delay sum true time delay (TTD) architecture. The proposed TTD divides the input signal to two signals with different time delays, then combines them in-phase at the output port. The variable time delay can be achieved by changing the power dividing and combining ratio of the two signals. The proposed TTD can provide lower insertion loss than varactor-loaded transmission line or switched delay line TTD, since it can achieve the large and continuously controlled time delay with a compact size. Also, this paper proposes a variable power divider/combiner with an increased range of the power dividing/combining ratio. The proposed delay sum TTD is demonstrated at 2.4 GHz. The measured insertion loss is only 2.3±0.25 dB with the continuously tunable delay of 843 ps (>720°), while maintaining the impedance matching below -10dB.

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Low-loss continuous true time delay with delay summing

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