Rf Micro

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  • Topic: Radio, Phase-locked loop, Radio electronics
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  • Published : January 30, 2013
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EE314:
CMOS RF Integrated Circuit Design
Introduction to Wireless Communication systems
Stanford University Hamid Rategh

Hamid Rategh

Stanford University

EE314 HO#1

1

Course Staff
Instructor: Dr. Hamid Rategh Email: hamid@smirc.stanford.edu Office Hours: MW 2:15-3:15PM @ CIS-126; Phone: 725-8313 TA: Mehdi Jahanbakht and Deji Akinwande Email: ta314@smirc.stanford.edu Office Hours @ Packard 106 Sunday 3:00 – 3:30 pm (for SCPD students only) Sunday 3:30 – 5:00 pm Thursday 5:00 – 6:00 pm

Course Administrator: June Wang Email: june@stanford.edu Office: CIS-203 Phone: 725-3706 2

Hamid Rategh

Stanford University

EE314 HO#1

TA announcements
Class URL is: http://eeclass.stanford.edu/ee314/ All students should register on class website to access handouts and to stay in touch with any announcements from the instructor or TA's The bulletin board on the class website will be supported by the TAs for exchange of information For the SCPD OHs, (per encouragement from SCPD) we will be experimenting with instant message chatting (instead of phone calls) in an attempt to provide better TA OH support to more SCPD students. We will send instructions to the SCPD students in a few days.

Hamid Rategh

Stanford University

EE314 HO#1

3

Course snapshot
Primary text
“The Design of CMOS RF Integrated Circuits”, T. Lee, Cambridge, 2004 (Second Edition)

Recommended text:
“RF Microelectronics”, B. Razavi, Pearson Education, 1997

Grading
Homework 30%, Project 30%, Final 40%

Prerequisite: EE214
Hamid Rategh Stanford University EE314 HO#1 4

Course Topics
Introduction to wireless communication systems Receiver architectures Review of passive networks Available passives in IC RLC networks and tune circuits Impedance transformation techniques Transmission lines Review of Distortion and circuit non-linearity IP3 1dB compression point AM to PM distortion Noise Noise sources in passive and active circuits Classical noise theory

LNA design

Hamid Rategh

Stanford University

EE314 HO#1

5

Course Topics (Cont.)
Mixers frequency conversion techniques Passive and active mixers Oscillators Topologies (Ring, Colpitts, VCO, Quadrature, …) Phase noise Frequency synthesizers and Phase-locked loops (PLL) Integer-N Fractional-N Power Amplifiers Different classes of operation (A, B, C, D, …) Linearization techniques

Hamid Rategh

Stanford University

EE314 HO#1

6

Block diagram of a wireless transceiver
Front-end Receiver
Duplexer/ Switch
LNA, Mixer, VCO, PLL,…

De-modulator

Base-band Signal Processing
Modulator

Front-end Transmitter
PA, mixer,…

In the transmit path, the base-band processor sends out the coded and compressed digital bits, which are then modulated and up-converted to the transmit frequency and finally amplified by the front-end module and transmitted via antenna In the receive path the received signal from the antenna is amplified and down converted to either base-band or some other intermediate frequencies before it is processed with the base-band signal processor In this course we will be only looking at the front-end receiver and transmitter

Hamid Rategh

Stanford University

EE314 HO#1

7

Half-duplex systems
Switch

Front-end Receiver

Front-end Transmitter

In a half-duplex system the transceiver either transmits or receives at any given time Such as: Walki-talki, GSM

The antenna is switched between transmitter and receiver Typically antenna switches have 1-2dB insertion loss and provide about 40dB of isolation between the two ports Hamid Rategh Stanford University EE314 HO#1 8

Full-duplex systems
Duplexer

Front-end Receiver

Front-end Transmitter

In a full duplex system the transceiver can transmit and receive simultaneously Such as: WLAN, CDMA, WCDMA

How can we transmit and receive at the same time?
Transmit at one frequency and receive at a different frequency

Duplexers are used to share the same...
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