Broadband Quadrature Hybrid for Image Rejection in Millimeter-wave Receivers

Umar Dilshad; Chen Chen; Xi Chen; Jungang Miao

doi:10.1109/IBCAST.2019.8667265

Broadband Quadrature Hybrid for Image Rejection in Millimeter-wave Receivers

Umar Dilshad
, Chen Chen
, Xi Chen
, Jungang Miao

School of Electronic and Information Engineering

Beihang University

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

4 Scopus citations

Abstract

This paper presents the design architecture of millimeter-wave receiver in which the un-desired image frequency band can be rejected at the IF stage using broadband quadrature hybrid. This scheme requires quadrature de-modulation/ down-conversion of the received signal at the front end; followed by quadrature hybrid at IF stage. The image rejection ratio (IRR) depends on the amplitude imbalance and phase imbalance of this quadrature hybrid. The design of C-Band broadband quadrature hybrid; based on 3-stage micro-strip cascaded branch-line topology; has been proposed for this receiver. The proposed broadband quadrature hybrid exhibits 66 % fractional bandwidth corresponding to measured amplitude balance of better than ±0.85 dB, phase imbalance better than 3 degrees, return loss and isolation better than 15 dB, in the frequency range (4-8 GHz). This quadrature hybrid shows tight 3-dB quadrature coupling response in much wider band; as compared to earlier published design schemes, to the best of our knowledge. This quadrature hybrid integrated in the proposed millimeter wave receiver (32-36 GHz) achieved IRR better than 20 dB in the whole frequency band.

Original language	English
Title of host publication	Proceedings of 2019 16th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2019
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	975-978
Number of pages	4
ISBN (Electronic)	9781538677292
DOIs	https://doi.org/10.1109/IBCAST.2019.8667265
State	Published - 13 Mar 2019
Event	16th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2019 - Islamabad, Pakistan Duration: 8 Jan 2019 → 12 Jan 2019

Publication series

Name	Proceedings of 2019 16th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2019

Conference

Conference	16th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2019
Country/Territory	Pakistan
City	Islamabad
Period	8/01/19 → 12/01/19

Keywords

Broadband
Cascaded branch-line
Coupler
Image Rejection
Millimeter-wave Receivers
Quadrature Hybrid

Access to Document

10.1109/IBCAST.2019.8667265

Cite this

Dilshad, U., Chen, C., Chen, X., & Miao, J. (2019). Broadband Quadrature Hybrid for Image Rejection in Millimeter-wave Receivers. In Proceedings of 2019 16th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2019 (pp. 975-978). Article 8667265 (Proceedings of 2019 16th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2019). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IBCAST.2019.8667265

Dilshad, Umar ; Chen, Chen ; Chen, Xi et al. / Broadband Quadrature Hybrid for Image Rejection in Millimeter-wave Receivers. Proceedings of 2019 16th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2019. Institute of Electrical and Electronics Engineers Inc., 2019. pp. 975-978 (Proceedings of 2019 16th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2019).

@inproceedings{d5635d9224974151b912f1121b71cb60,

title = "Broadband Quadrature Hybrid for Image Rejection in Millimeter-wave Receivers",

abstract = "This paper presents the design architecture of millimeter-wave receiver in which the un-desired image frequency band can be rejected at the IF stage using broadband quadrature hybrid. This scheme requires quadrature de-modulation/ down-conversion of the received signal at the front end; followed by quadrature hybrid at IF stage. The image rejection ratio (IRR) depends on the amplitude imbalance and phase imbalance of this quadrature hybrid. The design of C-Band broadband quadrature hybrid; based on 3-stage micro-strip cascaded branch-line topology; has been proposed for this receiver. The proposed broadband quadrature hybrid exhibits 66 \% fractional bandwidth corresponding to measured amplitude balance of better than ±0.85 dB, phase imbalance better than 3 degrees, return loss and isolation better than 15 dB, in the frequency range (4-8 GHz). This quadrature hybrid shows tight 3-dB quadrature coupling response in much wider band; as compared to earlier published design schemes, to the best of our knowledge. This quadrature hybrid integrated in the proposed millimeter wave receiver (32-36 GHz) achieved IRR better than 20 dB in the whole frequency band.",

keywords = "Broadband, Cascaded branch-line, Coupler, Image Rejection, Millimeter-wave Receivers, Quadrature Hybrid",

author = "Umar Dilshad and Chen Chen and Xi Chen and Jungang Miao",

note = "Publisher Copyright: {\textcopyright} 2019 IEEE.; 16th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2019 ; Conference date: 08-01-2019 Through 12-01-2019",

year = "2019",

month = mar,

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doi = "10.1109/IBCAST.2019.8667265",

language = "英语",

series = "Proceedings of 2019 16th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2019",

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Dilshad, U, Chen, C, Chen, X & Miao, J 2019, Broadband Quadrature Hybrid for Image Rejection in Millimeter-wave Receivers. in Proceedings of 2019 16th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2019., 8667265, Proceedings of 2019 16th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2019, Institute of Electrical and Electronics Engineers Inc., pp. 975-978, 16th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2019, Islamabad, Pakistan, 8/01/19. https://doi.org/10.1109/IBCAST.2019.8667265

Broadband Quadrature Hybrid for Image Rejection in Millimeter-wave Receivers. / Dilshad, Umar; Chen, Chen; Chen, Xi et al.
Proceedings of 2019 16th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2019. Institute of Electrical and Electronics Engineers Inc., 2019. p. 975-978 8667265 (Proceedings of 2019 16th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2019).

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

TY - GEN

T1 - Broadband Quadrature Hybrid for Image Rejection in Millimeter-wave Receivers

AU - Dilshad, Umar

AU - Chen, Chen

AU - Chen, Xi

AU - Miao, Jungang

PY - 2019/3/13

Y1 - 2019/3/13

N2 - This paper presents the design architecture of millimeter-wave receiver in which the un-desired image frequency band can be rejected at the IF stage using broadband quadrature hybrid. This scheme requires quadrature de-modulation/ down-conversion of the received signal at the front end; followed by quadrature hybrid at IF stage. The image rejection ratio (IRR) depends on the amplitude imbalance and phase imbalance of this quadrature hybrid. The design of C-Band broadband quadrature hybrid; based on 3-stage micro-strip cascaded branch-line topology; has been proposed for this receiver. The proposed broadband quadrature hybrid exhibits 66 % fractional bandwidth corresponding to measured amplitude balance of better than ±0.85 dB, phase imbalance better than 3 degrees, return loss and isolation better than 15 dB, in the frequency range (4-8 GHz). This quadrature hybrid shows tight 3-dB quadrature coupling response in much wider band; as compared to earlier published design schemes, to the best of our knowledge. This quadrature hybrid integrated in the proposed millimeter wave receiver (32-36 GHz) achieved IRR better than 20 dB in the whole frequency band.

AB - This paper presents the design architecture of millimeter-wave receiver in which the un-desired image frequency band can be rejected at the IF stage using broadband quadrature hybrid. This scheme requires quadrature de-modulation/ down-conversion of the received signal at the front end; followed by quadrature hybrid at IF stage. The image rejection ratio (IRR) depends on the amplitude imbalance and phase imbalance of this quadrature hybrid. The design of C-Band broadband quadrature hybrid; based on 3-stage micro-strip cascaded branch-line topology; has been proposed for this receiver. The proposed broadband quadrature hybrid exhibits 66 % fractional bandwidth corresponding to measured amplitude balance of better than ±0.85 dB, phase imbalance better than 3 degrees, return loss and isolation better than 15 dB, in the frequency range (4-8 GHz). This quadrature hybrid shows tight 3-dB quadrature coupling response in much wider band; as compared to earlier published design schemes, to the best of our knowledge. This quadrature hybrid integrated in the proposed millimeter wave receiver (32-36 GHz) achieved IRR better than 20 dB in the whole frequency band.

KW - Broadband

KW - Cascaded branch-line

KW - Coupler

KW - Image Rejection

KW - Millimeter-wave Receivers

KW - Quadrature Hybrid

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DO - 10.1109/IBCAST.2019.8667265

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BT - Proceedings of 2019 16th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2019

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 16th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2019

Y2 - 8 January 2019 through 12 January 2019

ER -

Dilshad U, Chen C, Chen X , Miao J. Broadband Quadrature Hybrid for Image Rejection in Millimeter-wave Receivers. In Proceedings of 2019 16th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2019. Institute of Electrical and Electronics Engineers Inc. 2019. p. 975-978. 8667265. (Proceedings of 2019 16th International Bhurban Conference on Applied Sciences and Technology, IBCAST 2019). doi: 10.1109/IBCAST.2019.8667265

Broadband Quadrature Hybrid for Image Rejection in Millimeter-wave Receivers

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Keywords

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