𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A 24-GHz 90-nm CMOS injection-locked frequency divider

✍ Scribed by Chien-Feng Lee; Sheng-Lyang Jang

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
368 KB
Volume
51
Category
Article
ISSN
0895-2477

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

This article presents a fully integrated 24‐GHz divide‐by‐2 injection‐locked frequency divider (ILFD). The circuit was implemented using a standard 90‐nm CMOS process. The ILFD consists of a VCO core and injection MOS for injection signal to the resonator. Two injection MOSFETs are in series with the cross‐coupled transistors. The measurement results show that at the supply voltage of 1.2 V, the free‐running ILFD is tunable from 11.4 to 12.11 GHz. The locking range is from 21.93 to 27.11 GHz. The output phase noise of the locked ILFD is −109.82 dBc/Hz at 10‐KHz offset frequency from the 12 GHz. The core power consumption is 4.32 mW at the supply voltage of 1.2 V. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 32–36, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23986

📜 SIMILAR VOLUMES

A varactorless CMOS direct-injection loc
A varactorless CMOS direct-injection locked frequency divider
✍ S.-L. Jang; C.-C. Liu 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 257 KB

## Abstract This paper presents a new integrated direct‐injection locked frequency (ILFD) with the capability of quadrature generation. The circuit consists of a quadrature VCO, based on the cross‐coupling of two differential LC‐tank VCOs and with the coupling transistors placed in parallel with th

A 2 mW, 55.8-GHz CMOS injection-locked f
A 2 mW, 55.8-GHz CMOS injection-locked frequency divider with 7.1-GHz locking range
✍ Wei-Lun Hsu; Chang-Zhi Chen; Yo-Sheng Lin 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 260 KB

## Abstract A low‐power and wide‐locking‐range 55.8‐GHz (V‐band) injection‐locked frequency‐divider (ILFD) using standard 0.13 μm CMOS technology is reported. To enhance locking range, a shunt inductor was introduced in the source node of the cross‐coupled pair to maximize the equivalent load imped

A current reused CMOS quadrature injecti
A current reused CMOS quadrature injection-locked frequency divider
✍ Yun-Hsueh Chuang; Sheng-Lyang Jang; Shao-Hwa Lee; Yeuh-Hua Chiang 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 230 KB

## Abstract A new current‐reused injection‐locked frequency divider is proposed to generate quadrature outputs and implemented using the standard UMC 0.18 μm CMOS 1P6M process. The proposed circuit is made of two LC‐tank voltage controlled oscillators (VCOs) stacked in series and the VCOs are coupl

A low power CMOS divide-by-3 LC-tank inj
A low power CMOS divide-by-3 LC-tank injection locked frequency divider
✍ Sheng-Lyang Jang; Wei Hsung Yeh; Chien-Feng Lee; M.-H. Juang 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 363 KB

## Abstract This article presents a divide‐by‐3 CMOS injection locked frequency divider (ILFD) fabricated in a 0.18um CMOS process. The ILFD circuit is realized with a complementary Colpitts CMOS LC‐tank oscillator with an injection MOS connected between the voltage controlled oscillator (VCO) outp

A 3.51-to-3.8 GHz divide-by-3 injection-
A 3.51-to-3.8 GHz divide-by-3 injection-locked frequency divider
✍ Yen-Chung Chiang; Ming-Fong Wu 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 496 KB

## Abstract This article proposes a divide‐by‐3 frequency divider (FD) with quadrature outputs fabricated in the 0.18‐μm CMOS technology. The current reuse and the back‐gate coupling techniques are adopted. Measured results show that the free‐running frequency is from 1.173 to 1.25 GHz. The propose

A 20–30 GHz divide-by-3 ring-oscillator-
A 20–30 GHz divide-by-3 ring-oscillator-based injection locked frequency divider with a wide locking range
✍ Seungwoo Seo; Hyogi Seo; Sanggeun Jeon; Jae-Sung Rieh 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 414 KB

## Abstract A 20–30 GHz divide‐by‐3 ring‐based injection locked frequency divider (ILFD) using NMOS loads for a wide locking range has been developed in a commercial 0.13‐μm Si RFCMOS technology.The ILFD shows a locking range up to 7.5 GHz (20.8−28.3 GHz, 30.5%) and operation range of 10 GHz (20.8–