Fully Integrated Ultra-Wideband Differential Circulator Based on Sequentially Switched Delay Line in 28-nm FDSOI CMOS

Jun Hwang; Byung Wook Min

doi:10.1109/RFIC54546.2022.9863099

Fully Integrated Ultra-Wideband Differential Circulator Based on Sequentially Switched Delay Line in 28-nm FDSOI CMOS

Jun Hwang, Byung Wook Min

Department of Electrical and Electronic Engineering

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

1 Citation (Scopus)

Abstract

In this paper, a non-magnetic circulator, which realizes non-reciprocal signal flows by sequentially switching delay lines, is presented in 28-nm fully depleted silicon-on-insulator (FDSOI) CMOS process. The proposed circulator is designed differentially to increase power handling capability and bandwidth. The bandwidth of insertion loss and isolation can be extended by latticely coupled inductors used in the differential synthetic delay lines. The characteristic impedance of the delay lines is determined by considering the channel resistance of CMOS transistor. The measured insertion losses of transmitter (TX) to antenna (ANT) and ANT to receiver (RX) are 2.5 dB and 2.6 dB, respectively. TX to RX isolation is > 20 dB up to 7 GHz. The measured TX input power 1 dB compression point is 4.7 dBm at 3.5 GHz. The chip size of the differential circulator is 1.33 × 0.72 mm2, which is as small as a single ended version, thanks to the coupled inductors.

Original language	English
Title of host publication	2022 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2022
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	267-270
Number of pages	4
ISBN (Electronic)	9781665496117
DOIs	https://doi.org/10.1109/RFIC54546.2022.9863099
Publication status	Published - 2022
Event	2022 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2022 - Denver, United States Duration: 2022 Jun 19 → 2022 Jun 21

Publication series

Name	Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium
Volume	2022-June
ISSN (Print)	1529-2517

Conference

Conference	2022 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2022
Country/Territory	United States
City	Denver
Period	22/6/19 → 22/6/21

Bibliographical note

Funding Information:
ACKNOWLEDGMENT This work was supported by IITP grant funded by the Korea government (MSIT) (No. 2020000218). The EDA tool was supported by the IC Design Education Center (IDEC), Korea.

Publisher Copyright:
© 2022 IEEE.

All Science Journal Classification (ASJC) codes

Engineering(all)

Access to Document

10.1109/RFIC54546.2022.9863099

Cite this

Hwang, J., & Min, B. W. (2022). Fully Integrated Ultra-Wideband Differential Circulator Based on Sequentially Switched Delay Line in 28-nm FDSOI CMOS. In 2022 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2022 (pp. 267-270). (Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium; Vol. 2022-June). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/RFIC54546.2022.9863099

@inproceedings{b9c1a07bdc9a4afdbf539ad5e218abbf,

title = "Fully Integrated Ultra-Wideband Differential Circulator Based on Sequentially Switched Delay Line in 28-nm FDSOI CMOS",

abstract = "In this paper, a non-magnetic circulator, which realizes non-reciprocal signal flows by sequentially switching delay lines, is presented in 28-nm fully depleted silicon-on-insulator (FDSOI) CMOS process. The proposed circulator is designed differentially to increase power handling capability and bandwidth. The bandwidth of insertion loss and isolation can be extended by latticely coupled inductors used in the differential synthetic delay lines. The characteristic impedance of the delay lines is determined by considering the channel resistance of CMOS transistor. The measured insertion losses of transmitter (TX) to antenna (ANT) and ANT to receiver (RX) are 2.5 dB and 2.6 dB, respectively. TX to RX isolation is > 20 dB up to 7 GHz. The measured TX input power 1 dB compression point is 4.7 dBm at 3.5 GHz. The chip size of the differential circulator is 1.33 × 0.72 mm2, which is as small as a single ended version, thanks to the coupled inductors.",

author = "Jun Hwang and Min, {Byung Wook}",

note = "Funding Information: ACKNOWLEDGMENT This work was supported by IITP grant funded by the Korea government (MSIT) (No. 2020000218). The EDA tool was supported by the IC Design Education Center (IDEC), Korea. Publisher Copyright: {\textcopyright} 2022 IEEE.; 2022 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2022 ; Conference date: 19-06-2022 Through 21-06-2022",

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doi = "10.1109/RFIC54546.2022.9863099",

language = "English",

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Hwang, J & Min, BW 2022, Fully Integrated Ultra-Wideband Differential Circulator Based on Sequentially Switched Delay Line in 28-nm FDSOI CMOS. in 2022 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2022. Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium, vol. 2022-June, Institute of Electrical and Electronics Engineers Inc., pp. 267-270, 2022 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2022, Denver, United States, 22/6/19. https://doi.org/10.1109/RFIC54546.2022.9863099

Fully Integrated Ultra-Wideband Differential Circulator Based on Sequentially Switched Delay Line in 28-nm FDSOI CMOS. / Hwang, Jun; Min, Byung Wook.

2022 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2022. Institute of Electrical and Electronics Engineers Inc., 2022. p. 267-270 (Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium; Vol. 2022-June).

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

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AU - Hwang, Jun

AU - Min, Byung Wook

N1 - Funding Information: ACKNOWLEDGMENT This work was supported by IITP grant funded by the Korea government (MSIT) (No. 2020000218). The EDA tool was supported by the IC Design Education Center (IDEC), Korea. Publisher Copyright: © 2022 IEEE.

PY - 2022

Y1 - 2022

N2 - In this paper, a non-magnetic circulator, which realizes non-reciprocal signal flows by sequentially switching delay lines, is presented in 28-nm fully depleted silicon-on-insulator (FDSOI) CMOS process. The proposed circulator is designed differentially to increase power handling capability and bandwidth. The bandwidth of insertion loss and isolation can be extended by latticely coupled inductors used in the differential synthetic delay lines. The characteristic impedance of the delay lines is determined by considering the channel resistance of CMOS transistor. The measured insertion losses of transmitter (TX) to antenna (ANT) and ANT to receiver (RX) are 2.5 dB and 2.6 dB, respectively. TX to RX isolation is > 20 dB up to 7 GHz. The measured TX input power 1 dB compression point is 4.7 dBm at 3.5 GHz. The chip size of the differential circulator is 1.33 × 0.72 mm2, which is as small as a single ended version, thanks to the coupled inductors.

AB - In this paper, a non-magnetic circulator, which realizes non-reciprocal signal flows by sequentially switching delay lines, is presented in 28-nm fully depleted silicon-on-insulator (FDSOI) CMOS process. The proposed circulator is designed differentially to increase power handling capability and bandwidth. The bandwidth of insertion loss and isolation can be extended by latticely coupled inductors used in the differential synthetic delay lines. The characteristic impedance of the delay lines is determined by considering the channel resistance of CMOS transistor. The measured insertion losses of transmitter (TX) to antenna (ANT) and ANT to receiver (RX) are 2.5 dB and 2.6 dB, respectively. TX to RX isolation is > 20 dB up to 7 GHz. The measured TX input power 1 dB compression point is 4.7 dBm at 3.5 GHz. The chip size of the differential circulator is 1.33 × 0.72 mm2, which is as small as a single ended version, thanks to the coupled inductors.

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Hwang J, Min BW. Fully Integrated Ultra-Wideband Differential Circulator Based on Sequentially Switched Delay Line in 28-nm FDSOI CMOS. In 2022 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2022. Institute of Electrical and Electronics Engineers Inc. 2022. p. 267-270. (Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium). doi: 10.1109/RFIC54546.2022.9863099

Fully Integrated Ultra-Wideband Differential Circulator Based on Sequentially Switched Delay Line in 28-nm FDSOI CMOS

Abstract

Publication series

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Bibliographical note

All Science Journal Classification (ASJC) codes

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