Effects of Subharmonics in LO Generation on RF Transceivers

Zhirui Zong; Robert Bogdan Staszewski

Effects of Subharmonics in LO Generation on RF Transceivers

Zhirui Zong, Robert Bogdan Staszewski

Research output: Chapter in Book/Conference Proceeding/Report › Conference Paper published in a book › peer-review

Abstract

Subharmonic residual in LO can degrade the performance of RF/mm-wave transceivers that employ frequency multipliers for LO generation. In this paper, we analyze the side effects that such subharmonics can cause. The effects are categorized to three parts: distortions in the up/down-converted signal, out-of-band emissions, and blocker tolerance in the receivers. A 60 GHz direct-conversion transceiver with a frequency tripler is taken for analysis. It is proved that there is no distortion or out-of-band emission issue with the presence of subharmonic in LO. For normal blocker tolerance requirements, the intrinsic subharmonic rejection capability in frequency multipliers is sufficient. In extreme cases, extra subharmonic filtering/rejection is needed.

Original language	English
Title of host publication	2018 IEEE MTT-S International Microwave Workshop Series on 5G Hardware and System Technologies, IMWS-5G 2018
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781538611975
Publication status	Published - 5 Oct 2018
Externally published	Yes
Event	2018 IEEE MTT-S International Microwave Workshop Series on 5G Hardware and System Technologies, IMWS-5G 2018 - Dublin, Ireland Duration: 30 Aug 2018 → 31 Aug 2018

Publication series

Name	2018 IEEE MTT-S International Microwave Workshop Series on 5G Hardware and System Technologies, IMWS-5G 2018

Conference

Conference	2018 IEEE MTT-S International Microwave Workshop Series on 5G Hardware and System Technologies, IMWS-5G 2018
Country/Territory	Ireland
City	Dublin
Period	30/08/18 → 31/08/18

Bibliographical note

Publisher Copyright:
© 2018 IEEE.

Keywords

60 GHz
blocker tolerance
distortion
emission mask
frequency multiplier
LO
mm-wave
subharmonic
tripler

Access to Document

https://hdl.handle.net/1783.1/121647

Cite this

Zong, Z., & Staszewski, R. B. (2018). Effects of Subharmonics in LO Generation on RF Transceivers. In 2018 IEEE MTT-S International Microwave Workshop Series on 5G Hardware and System Technologies, IMWS-5G 2018 Article 8484718 (2018 IEEE MTT-S International Microwave Workshop Series on 5G Hardware and System Technologies, IMWS-5G 2018). Institute of Electrical and Electronics Engineers Inc.. https://hdl.handle.net/1783.1/121647

Zong, Zhirui ; Staszewski, Robert Bogdan. / Effects of Subharmonics in LO Generation on RF Transceivers. 2018 IEEE MTT-S International Microwave Workshop Series on 5G Hardware and System Technologies, IMWS-5G 2018. Institute of Electrical and Electronics Engineers Inc., 2018. (2018 IEEE MTT-S International Microwave Workshop Series on 5G Hardware and System Technologies, IMWS-5G 2018).

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title = "Effects of Subharmonics in LO Generation on RF Transceivers",

abstract = "Subharmonic residual in LO can degrade the performance of RF/mm-wave transceivers that employ frequency multipliers for LO generation. In this paper, we analyze the side effects that such subharmonics can cause. The effects are categorized to three parts: distortions in the up/down-converted signal, out-of-band emissions, and blocker tolerance in the receivers. A 60 GHz direct-conversion transceiver with a frequency tripler is taken for analysis. It is proved that there is no distortion or out-of-band emission issue with the presence of subharmonic in LO. For normal blocker tolerance requirements, the intrinsic subharmonic rejection capability in frequency multipliers is sufficient. In extreme cases, extra subharmonic filtering/rejection is needed.",

keywords = "60 GHz, blocker tolerance, distortion, emission mask, frequency multiplier, LO, mm-wave, subharmonic, tripler",

author = "Zhirui Zong and Staszewski, \{Robert Bogdan\}",

note = "Publisher Copyright: {\textcopyright} 2018 IEEE.; 2018 IEEE MTT-S International Microwave Workshop Series on 5G Hardware and System Technologies, IMWS-5G 2018 ; Conference date: 30-08-2018 Through 31-08-2018",

year = "2018",

month = oct,

day = "5",

language = "English",

series = "2018 IEEE MTT-S International Microwave Workshop Series on 5G Hardware and System Technologies, IMWS-5G 2018",

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Zong, Z & Staszewski, RB 2018, Effects of Subharmonics in LO Generation on RF Transceivers. in 2018 IEEE MTT-S International Microwave Workshop Series on 5G Hardware and System Technologies, IMWS-5G 2018., 8484718, 2018 IEEE MTT-S International Microwave Workshop Series on 5G Hardware and System Technologies, IMWS-5G 2018, Institute of Electrical and Electronics Engineers Inc., 2018 IEEE MTT-S International Microwave Workshop Series on 5G Hardware and System Technologies, IMWS-5G 2018, Dublin, Ireland, 30/08/18. <https://hdl.handle.net/1783.1/121647>

Effects of Subharmonics in LO Generation on RF Transceivers. / Zong, Zhirui; Staszewski, Robert Bogdan.
2018 IEEE MTT-S International Microwave Workshop Series on 5G Hardware and System Technologies, IMWS-5G 2018. Institute of Electrical and Electronics Engineers Inc., 2018. 8484718 (2018 IEEE MTT-S International Microwave Workshop Series on 5G Hardware and System Technologies, IMWS-5G 2018).

Research output: Chapter in Book/Conference Proceeding/Report › Conference Paper published in a book › peer-review

TY - GEN

T1 - Effects of Subharmonics in LO Generation on RF Transceivers

AU - Zong, Zhirui

AU - Staszewski, Robert Bogdan

PY - 2018/10/5

Y1 - 2018/10/5

N2 - Subharmonic residual in LO can degrade the performance of RF/mm-wave transceivers that employ frequency multipliers for LO generation. In this paper, we analyze the side effects that such subharmonics can cause. The effects are categorized to three parts: distortions in the up/down-converted signal, out-of-band emissions, and blocker tolerance in the receivers. A 60 GHz direct-conversion transceiver with a frequency tripler is taken for analysis. It is proved that there is no distortion or out-of-band emission issue with the presence of subharmonic in LO. For normal blocker tolerance requirements, the intrinsic subharmonic rejection capability in frequency multipliers is sufficient. In extreme cases, extra subharmonic filtering/rejection is needed.

AB - Subharmonic residual in LO can degrade the performance of RF/mm-wave transceivers that employ frequency multipliers for LO generation. In this paper, we analyze the side effects that such subharmonics can cause. The effects are categorized to three parts: distortions in the up/down-converted signal, out-of-band emissions, and blocker tolerance in the receivers. A 60 GHz direct-conversion transceiver with a frequency tripler is taken for analysis. It is proved that there is no distortion or out-of-band emission issue with the presence of subharmonic in LO. For normal blocker tolerance requirements, the intrinsic subharmonic rejection capability in frequency multipliers is sufficient. In extreme cases, extra subharmonic filtering/rejection is needed.

KW - 60 GHz

KW - blocker tolerance

KW - distortion

KW - emission mask

KW - frequency multiplier

KW - LO

KW - mm-wave

KW - subharmonic

KW - tripler

UR - https://www.scopus.com/pages/publications/85056388869

M3 - Conference Paper published in a book

AN - SCOPUS:85056388869

T3 - 2018 IEEE MTT-S International Microwave Workshop Series on 5G Hardware and System Technologies, IMWS-5G 2018

BT - 2018 IEEE MTT-S International Microwave Workshop Series on 5G Hardware and System Technologies, IMWS-5G 2018

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2018 IEEE MTT-S International Microwave Workshop Series on 5G Hardware and System Technologies, IMWS-5G 2018

Y2 - 30 August 2018 through 31 August 2018

ER -

Zong Z, Staszewski RB. Effects of Subharmonics in LO Generation on RF Transceivers. In 2018 IEEE MTT-S International Microwave Workshop Series on 5G Hardware and System Technologies, IMWS-5G 2018. Institute of Electrical and Electronics Engineers Inc. 2018. 8484718. (2018 IEEE MTT-S International Microwave Workshop Series on 5G Hardware and System Technologies, IMWS-5G 2018).

Effects of Subharmonics in LO Generation on RF Transceivers

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