VCO with 8-shaped Transformer Coupled Transmission-Line

被引：0

作者：

Jang, Sheng-Lyang ^{[1
]}

Chen, Shih-Hsuan ^{[1
]}

Sung, Jiun-Yu ^{[1
]}

Lai, Wen-Cheng ^{[2
]}

Hsu, Mao-Hsiu ^{[3
]}

Juang, Miin-Horng ^{[1
]}

机构：

[1] Natl Taiwan Univ Sci & Technol, Dept Elect Engn, Taipei, Taiwan

[2] Ming Chi Univ Technol, Dept Elect Engn, Taipei, Taiwan

[3] Natl Formosa Univ, Dept Electroopt, Huwei Township 632, Yunlin, Taiwan

来源：

2024 IEEE THE 20TH ASIA PACIFIC CONFERENCE ON CIRCUITS AND SYSTEMS, APCCAS 2024 | 2024年

关键词：

CMOS; voltage-controlled oscillator (VCO); phase noise; twisted transformer; passive coupling;

D O I：

10.1109/APCCAS62602.2024.10808598

中图分类号：

学科分类号：

摘要：

This letter presents the design and measurement of a 3.4 GHz oscillator in the TSMC 0.18 mu m CMOS technology. The fully integrated oscillator consists of four sub-oscillators and uses four twisted transformers with the secondary inductors connected to form a twisted closed-loop transmission line for coupling the sub-oscillators. The fully-integrated chip occupies a die area of 1.2 x1.2 mm(2). The transformers are configured as 8-shaped structures to minimize the far-field magnetic field radiation from each transformer and the whole transformer. At the supply voltage of 1.7 V, the current consumption is 11.32 mA. The free-running oscillation frequency of the QVCO is tuneable. The measured phase noise at 1MHz frequency offset is -125.73 dBc/Hz at the oscillation frequency of 3.4 GHz and the figure of merit (FOM) of the proposed QVCO is -185.38dBc/Hz.

引用

页码：277 / 280

页数：4

共 50 条

[41] A Broadband and High-Efficiency Ruthroff 1:9 Transmission-Line Transformer Using Coupled Microstrip Lines
Cheraiet, Z.
Benhabiles, M. T.
Riabi, M. L.
2016 IEEE MTT-S INTERNATIONAL CONFERENCE ON NUMERICAL ELECTROMAGNETIC AND MULTIPHYSICS MODELING AND OPTIMIZATION (NEMO), 2016,
[42] EFFECT OF LENGTH OF EACH TRANSMISSION-LINE IN ROY TRANSFORMER ON WIDEBAND MATCHING
MGOMBELO, HR
ELECTRONICS LETTERS, 1981, 17 (12) : 402 - 403
[43] Dual-Band Design Theory for Dual Transmission-Line Transformer
Wang, Xiaolong
Ma, Zhewang
Ohira, Masataka
IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, 2017, 27 (09) : 782 - 784
[44] Voltage-clamped class E amplifier with transmission-line transformer
Suetsugu, T
Kazimierczuk, M
2005 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS), VOLS 1-6, CONFERENCE PROCEEDINGS, 2005, : 712 - 715
[45] A 4:1 Transmission-Line Impedance Transformer for Broadband Superconducting Circuits
Ranzani, Leonardo
Spietz, Lafe
Popovic, Zoya
Aumentado, Jose
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY, 2012, 22 (05)
[46] DESIGN PROCEDURES FOR A PRINTED CIRCUIT-BOARD TRANSMISSION-LINE TRANSFORMER
CHAMBERLAYNE, JW
ELECTRONICS LETTERS, 1975, 11 (25-2) : 609 - 610
[47] A RESETTING ALGORITHM FOR TRANSIENT ANALYSIS OF COUPLED TRANSMISSION-LINE CIRCUITS
LU, LC
NAKHLA, MS
ZHANG, QJ
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1994, 42 (03) : 494 - 500
[48] USEFUL IDENTITY FOR ANALYSIS OF A CLASS OF COUPLED TRANSMISSION-LINE STRUCTURES
GRAYZEL, AI
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, 1974, MT22 (10) : 904 - 907
[49] COUPLED MODE THEORY IN A LOSSY, NONLINEAR TRANSMISSION-LINE SYSTEM
HSIEH, HC
JOURNAL OF APPLIED PHYSICS, 1987, 62 (05) : 2095 - 2102
[50] FLUXON THRESHOLD PROPERTIES ON A RESISTIVELY COUPLED JOSEPHSON TRANSMISSION-LINE
NITTA, J
MATSUDA, A
KAWAKAMI, T
APPLIED PHYSICS LETTERS, 1984, 44 (08) : 808 - 810

← 1 2 3 4 5 →