A 900MHz CMOS Balanced Harmonic Mixer for Direct Conversion Receivers

نویسندگان

  • Zhaofeng Zhang
  • Zhiheng Chen
  • Jack Lau
چکیده

A 900MHz balanced harmonic mixer for direct conversion receivers is fabricated in a 0.35 μm standard digital CMOS process. The self-mixing-induced DC offset is about 44dB lower than that of the conventional mixer. The inputreferred offset is reduced to the noise level. Specific techniques on flicker noise reduction are also discussed. At 3V power supply and -15.4dBm LO power, it achieves 13 dB conversion gain, 24.5dB noise figure at 10 kHz, -10 dBm third-order input intercept point and +36 dBm second-order input intercept point. The total power consumption is about 5mW.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

A Flicker-Noise-Free DC-Offset-Free Harmonic Mixer in a CMOS Process

A harmonic mixer for direct-conversion receivers is proposed and fabricated in a CMOS process. It is immune from both the flicker noise and self-mixing induced DC offset. Using the lateral bipolar transistor and the harmonic mixing technique, it achieves +15dB gain, 17.8dB NF at 10kHz frequency, 8.2dBm IIP3, +44dBm IIP2 and more than 30dB DC offset suppression. It consumes 2.2mW power at 3V.

متن کامل

WCDMA Direct Conversion Front End in 0.13um digital CMOS

This project presents a direct-conversion 3G front end in 0.13um digital CMOS for use with the 2.1 GHz WCDMA frequency band. These receivers, widely used in 3G mobile telephony, require low power consumption and cost effective integration with other systems while maintaining high linearity and sensitivity. This project includes the design of a differential LNA, a double-balanced mixer and an on...

متن کامل

A 2.4GHz Low Power Highly Linear Mixer for Direct-Conversion Receivers

In this paper, a 2.4GHz low power downconversion mixer with high linearity for direct-conversion receivers based on a standard 0.18um CMOS technology is proposed. In the circuit design, Gilbert cell architecture and Common-Gate configuration are used. A simple buffer is applied in the IF output. Simulation results show that the mixer can operate at 2.4GHz and obtain the conversion gain of 11.08...

متن کامل

0.18 Μm Cmos Sub-harmonic Mixer for 2.4 Ghz Ieee802.15.4 Transceiver

This paper describes sub-harmonic mixer designed in 0.18 μm CMOS process and intended for use in low-power IEEE 802.15.4-compliant 2.4 GHz transceiver. Device addresses the following issues of the direct conversion architecture: flicker-noise, LO leakage and oscillator pulling.

متن کامل

An adaptive offset cancellation mixer for direct conversion receivers in 2.4 GHz CMOS

In this paper we present a new circuit design for a 2.4GHz CMOS direct conversion mixer incorporating adaptive offset cancellation. The basic circuit structure is that of a Gilbert cell mixer. Offsets are cancelled by dynamically varying the bias on the loads, which are designed to provide constant impedance independent of the load cancellation current. The bias control is regulated via an adap...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2000