rf microelectronics - yolaapinunt.yolasite.com/resources/rfic/lec01.pdf · ตํารา!! rf...
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+ วิชานี้เกี่ยวกับอะไร ?
n เพื่อศึกษาวงจรรวมและระบบไมโครอิเล็กทรอนิกส์ สําหรับการรับส่งสัญญาณคลื่นความถี่วิทยุ
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+ แผนการสอน
n Introduction to RF and Wireless Technology.
n Basic Concepts in RF Design.
n Modulation and Detection.
n Multiple Access Techniques and Wireless Standards.
n Transceiver Architectures.
n Low-Noise Amplifiers and Mixers.
n Oscillators.
n Frequency Synthesizers.
n Power Amplifiers.
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+ ตํารา
n RF Microelectronics ,2nd edition, B. Razavi, Prentice-Hall, 2012
n The design of CMOS radio-frequency integrated circuits, T. H. Lee, Cambridge university press, 1998
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+ การประเมินผล
n การบ้าน 10 %
n สอบกลางภาค 40 %
n สอบปลายภาค 50 %
n ช่วงของเกรด (โดยประมาณ)
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
n http://apinunt.yolasite.com/rf-microelectronics.php
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+
1. Introduction to RF and Wireless Technology
+ 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.
n Loosely defined in the band: 3 Hz - 300 GHz.
n Most of this range is beyond the vibration rate that most mechanical systems can respond to, RF usually refers to oscillations in electrical circuits.
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RF Examples
+ Iphone 5s
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§ 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
+ Modern wireless communications
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+ Modern wireless communications
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+ Wireless standards
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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..
n GPS: global position system. Operating around 1.5 GHz to know where you are at any places.
n RF IDs: a small and lost-cost tags. Allows to identify who/where you are. Operating at 900-MHz and 2.4-GHz bands.
n Home satellite network: Operating 10-GHz range and direct broadcast TV through satellite to home with very high quality.
n Cellular phone: AMPs, GSM, GPRS, EDGE, CDMA, WCDMA…
n PAN (personal area network): Bluetooth, Zigbee
n Ultra-wide band radio (UWB)
n 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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+ Digital wireless receiver
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+ วงจรรับ-ส่งสัญญาณวิทยุ
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+ Digital RF wireless systems
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+ RF front-end of a cellular phone
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+
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+ Wireless environment
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+ RF propagation effects
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+ Design bottlenecks
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n RF and baseband processing in a transceiver
n Multi-disciplinary field
+ แนวโน้มการพัฒนาวงจรรับ-ส่งสัญญาณวิทยุ
n ชิพตัวเดียวโดยมีอุปกรณ์ภายนอกน้อยที่สุด ทําให้วงจรอนาลอกและดิจิตอลต้องถูกรวมไว้ด้วยกัน => System-on-chip (SoC) or System-in-package (SiP)
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+ Choice of technology
n GaAs: higher breakdown voltage, cutoff frequency, semi-insulating substrate, and high-quality inductors, capacitors. n Example : Power amplifier
n Silicon BJT: It’s popular, too. n Example : LNA
n BiCMOS: Allow more integration for RF IC, but, somewhat, expensive. n Example : GSM RF front end
n CMOS: Cheap and high integration. But, lots of design problems. n Example : Bluetooth, WLAN
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+ Why CMOS technology?
n Submicron MOST, 0.13μm today, very fast, fT≈30GHz, perform well up to 3GHz
n Min.digital supply 1.2V, min.analog supply 1.8V, low power dissipated – good for batteries
n Low noise figure ~1.5 dB
n Good linearity for higher signal swing
n With multiple metal layers good capacitors and inductors (QL up to 20) can be integrated on a chip
n Upper metal layers far from Si substrate – reduce substrate losses
n All transceiver components ~can be integrated on one chip
n CMOS cheaper from other technologies (BiCMOS, GaAs)
n Many successful RF CMOS designs performed recently
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+ Summary
n Wireless communication systems (mobile, cordless, WLAN, GPS, … ) are in continuous progress
n Wireless communication systems are very complex multidisciplinary field
n Design, both at system and circuit level (RF IC’s), is a multi-objective task
n CMOS technology proves to be increasingly competitive for RF IC’s design
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