RF Microelectronics - Apinunt Thanachayanont

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RF Microelectronics Assoc. Prof. Dr. Apinunt Thanachayanont [email protected]

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วิชานี้เกี่ยวกับอะไร ? n 

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เพื่อศึกษาวงจรรวมและระบบไมโครอิเล็กทรอนิกส์ สําหรับการรับส่ง สัญญาณคลื่นความถี่วิทยุ

A. Thanachayanont

RF Microelectronics

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แผนการสอน n 

Introduction to RF and Wireless Technology.

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Basic Concepts in RF Design.

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Modulation and Detection.

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Multiple Access Techniques and Wireless Standards.

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Transceiver Architectures.

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Low-Noise Amplifiers and Mixers.

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Oscillators.

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Frequency Synthesizers.

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Power Amplifiers.

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RF Microelectronics

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ตํารา

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n  RF

Microelectronics ,2nd edition, B. Razavi, Prentice-Hall, 2012

n  The

design of CMOS radiofrequency integrated circuits, T. H. Lee, Cambridge university press, 1998

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RF Microelectronics

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การประเมินผล n 

การบ้าน





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สอบกลางภาค



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สอบปลายภาค

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ช่วงของเกรด (โดยประมาณ)

10 %

40 % 50 %

n  A: 76-100, B+:

71-75, B: 66-70, C+: 56-65, C: 41-55, D+: 36-40, D: 31-35, F: 0-30

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http://apinunt.yolasite.com/rf-microelectronics.php

A. Thanachayanont

RF Microelectronics

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1. Introduction to RF and Wireless Technology

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What is RF? n 

Radio Frequency: the mode of communication for wireless technologies of all kinds, including cordless phones, radar, ham radio, GPS, and radio and television broadcasts.

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Loosely defined in the band: 3 Hz - 300 GHz.

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Most of this range is beyond the vibration rate that most mechanical systems can respond to, RF usually refers to oscillations in electrical circuits.

A. Thanachayanont

RF Examples

RF Microelectronics

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§  §  §  §  § 

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Iphone 5s

2.5G: GSM/EDGE (850, 900, 1800, 1900 MHz); 3G: UMTS/HSPA+/DC-HSDPA (850, 900, 1900, 2100 MHz); 4G: FDD-LTE (Bands 1, 2, 3, 5, 7, 8, 20); TD-LTE (Bands 38, 39, 40) 802.11a/b/g/n Wi-Fi (802.11n 2.4GHz and 5GHz) Bluetooth 4.0 wireless technology

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Modern wireless communications

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RF Microelectronics

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Modern wireless communications

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RF Microelectronics

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Wireless standards

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RF Microelectronics

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Applications n 

WLAN: IEEE 802.11 a/b/g =>Enable wireless Local Area Network. 2.4G, 5.2G/5.7G and etc..

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GPS: global position system. Operating around 1.5 GHz to know where you are at any places.

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RF IDs: a small and lost-cost tags. Allows to identify who/where you are. Operating at 900-MHz and 2.4-GHz bands.

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Home satellite network: Operating 10-GHz range and direct broadcast TV through satellite to home with very high quality.

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Cellular phone: AMPs, GSM, GPRS, EDGE, CDMA, WCDMA…

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PAN (personal area network): Bluetooth, Zigbee

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Ultra-wide band radio (UWB)

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Pager: Extinction

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Overview of standards

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Why RF?

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Why RF?

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Basic wireless transceiver

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RF Microelectronics

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Digital wireless receiver

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RF Microelectronics

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วงจรรับ-ส่งสัญญาณวิทยุ

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Digital RF wireless systems

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RF Microelectronics

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RF front-end of a cellular phone

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RF Microelectronics

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Wireless environment

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RF Microelectronics

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RF propagation effects

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RF Microelectronics

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Design bottlenecks n 

RF and baseband processing in a transceiver

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Multi-disciplinary field

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RF Microelectronics

+แนวโน้มการพัฒนาวงจรรับ-ส่งสัญญาณวิทยุ n 

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ชิพตัวเดียวโดยมีอุปกรณ์ภายนอกน้อย ที่สุด ทําให้วงจรอนาลอกและดิจิตอลต้อง ถูกรวมไว้ด้วยกัน => System-on-chip (SoC) or System-in-package (SiP)

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Choice of technology n 

GaAs: higher breakdown voltage, cutoff frequency, semiinsulating substrate, and high-quality inductors, capacitors. n 

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Silicon BJT: It’s popular, too. n 

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Example : LNA

BiCMOS: Allow more integration for RF IC, but, somewhat, expensive. n 

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Example : Power amplifier

Example : GSM RF front end

CMOS: Cheap and high integration. But, lots of design problems. n 

Example : Bluetooth, WLAN

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RF Microelectronics

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Why CMOS technology? n 

Submicron MOST, 0.13μm today, very fast, fT≈30GHz, perform well up to 3GHz

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Min.digital supply 1.2V, min.analog supply 1.8V, low power dissipated – good for batteries

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Low noise figure ~1.5 dB

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Good linearity for higher signal swing

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With multiple metal layers good capacitors and inductors (QL up to 20) can be integrated on a chip

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Upper metal layers far from Si substrate – reduce substrate losses

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All transceiver components ~can be integrated on one chip

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CMOS cheaper from other technologies (BiCMOS, GaAs)

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Many successful RF CMOS designs performed recently

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Summary n 

Wireless communication systems (mobile, cordless, WLAN, GPS, … ) are in continuous progress

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Wireless communication systems are very complex multidisciplinary field

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Design, both at system and circuit level (RF IC’s), is a multi-objective task

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CMOS technology proves to be increasingly competitive for RF IC’s design

A. Thanachayanont

RF Microelectronics