{"product_id":"9789048172795","title":"IQ Calibration Techniques for CMOS Radio Transceivers","description":"\u003ch1\u003eIQ Calibration Techniques for CMOS Radio Transceivers\u003c\/h1\u003e \u003ch2\u003eChen, Sao-Jie; Hsieh, Yong-Hsiang\u003c\/h2\u003e \u003cp\u003e\u003c\/p\u003e\u003cp\u003eIn the market of wireless communication, high data-rate transmission and high spectral efficiency have been the trend. The IEEE 802.11 a\/g standards working at 5GHz\/2.4GHz ISM bands can support data rate up to 54Mbits\/s using OFDM modulation. The newly proposed 802.11n technology now uses 64-QAM to achieve higher spectral efficiency. The DVB and many other systems will also use QAM for its data transmission.\u003c\/p\u003e\n\u003cp\u003eThe cost of achieving this higher spectral efficiency using higher order QAM is that the transmitter and receiver requires a higher signal to noise ratio (SNR) with the same level of error rate performance (relative to a baseline BPSK, QPSK and other systems). One of the dominant vectors on SNR degradation is I\/Q image rejection (I\/Q gains and phases imbalance).\u003c\/p\u003e\n\u003cp\u003eThere are a lot of factors that degrade the matching of gains and phases between I\/Q signals: the instinct layout mismatch, the random mismatch of the devices, the different temperatures over the I\/Q signal paths. IQ Calibration Techniques For CMOS Radio Transceivers describes a fully-analog compensation technique without baseband circuitry to control the calibration process. This book will use an 802.11g transceiver design as an example to give a detailed description on the I\/Q gains and phases imbalance auto-calibration mechanism.\u003c\/p\u003e \u003ch3\u003eDetails\u003c\/h3\u003e \u003cp\u003ePublished by: Springer\u003c\/p\u003e \u003cp\u003ePublication Date: 2010-11-30\u003c\/p\u003e \u003cp\u003eFormat: Paperback\u003c\/p\u003e \u003cp\u003eISBN-13: 9789048172795\u003c\/p\u003e \u003cp\u003eDOI: 10.1007\/1-4020-5083-6\u003c\/p\u003e \u003cp\u003eDimensions: 240.0cm x160.0cm\u003c\/p\u003e \u003cp\u003ePages: 89.0\u003c\/p\u003e ","brand":"Springer Netherlands","offers":[{"title":"Default Title","offer_id":45580118294668,"sku":"9789048172795","price":98.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/9545\/1788\/files\/9789048172795_d68ec72e-dc10-49e7-8610-9eea04f08e87.jpg?v=1767218155","url":"https:\/\/fh90cf-fv.myshopify.com\/products\/9789048172795","provider":"Late Knight Books and Services, LLC","version":"1.0","type":"link"}