An LTPS TFT Demodulator for RFID Tags Embeddable on Panel Displays
This paper presents an amplitude-shift-keying (ASK) demodulator for RF identification tags, which can be embedded on panel displays. The ASK demodulator was implemented in 3-mum low-temperature polycrystalline silicon (LTPS) thin-film transistor (TFT) technology. Since the threshold voltages of LTPS...
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| Veröffentlicht in: | IEEE transactions on microwave theory and techniques 2009-05, Vol.57 (5), p.1356-1361 |
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| container_title | IEEE transactions on microwave theory and techniques |
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| creator | Yueh-Hua Yu Yuan-Jiang Lee Yu-Hsuan Li Chung-Hung Kuo Chun-Huai Li Yao-Jen Hsieh Chun-Ting Liu Chen, Y.-J.E. |
| description | This paper presents an amplitude-shift-keying (ASK) demodulator for RF identification tags, which can be embedded on panel displays. The ASK demodulator was implemented in 3-mum low-temperature polycrystalline silicon (LTPS) thin-film transistor (TFT) technology. Since the threshold voltages of LTPS TFTs are higher than CMOS transistors, the conventional demodulator implementation will degrade the demodulator sensitivity significantly. The novel full-wave demodulator circuit was proposed to resolve the issue of high threshold voltage and reduce the ripples of the demodulated envelope. Operated at 8 V, the demodulator consumes 1.6 mW of power. The input carrier frequency was tested up to 13.56 MHz, and the highest ASK modulated data rate is 100 kb/s. The circuit size of the LTPS TFT demodulator is 500 mum times 450 mum. |
| doi_str_mv | 10.1109/TMTT.2009.2017312 |
| format | Article |
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The ASK demodulator was implemented in 3-mum low-temperature polycrystalline silicon (LTPS) thin-film transistor (TFT) technology. Since the threshold voltages of LTPS TFTs are higher than CMOS transistors, the conventional demodulator implementation will degrade the demodulator sensitivity significantly. The novel full-wave demodulator circuit was proposed to resolve the issue of high threshold voltage and reduce the ripples of the demodulated envelope. Operated at 8 V, the demodulator consumes 1.6 mW of power. The input carrier frequency was tested up to 13.56 MHz, and the highest ASK modulated data rate is 100 kb/s. The circuit size of the LTPS TFT demodulator is 500 mum times 450 mum.</description><identifier>ISSN: 0018-9480</identifier><identifier>EISSN: 1557-9670</identifier><identifier>DOI: 10.1109/TMTT.2009.2017312</identifier><identifier>CODEN: IETMAB</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Amplitude shift keying ; Circuits ; Demodulation ; Demodulator ; Demodulators ; Displays ; low-temperature polycrystalline silicon (LTPS) ; Panels ; Radio frequency ; Radiofrequency identification ; RF identification (RFID) ; RFID tags ; Semiconductor devices ; Silicon ; system on panel (SoP) ; Tags ; Thin film transistors ; Threshold voltage ; Transistors ; transponder</subject><ispartof>IEEE transactions on microwave theory and techniques, 2009-05, Vol.57 (5), p.1356-1361</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2009</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c399t-672228094001247f3c5e32fc1d7fe1cca0992570b002560f6999a2e09845f64a3</citedby><cites>FETCH-LOGICAL-c399t-672228094001247f3c5e32fc1d7fe1cca0992570b002560f6999a2e09845f64a3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/4814531$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,777,781,793,27905,27906,54739</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/4814531$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Yueh-Hua Yu</creatorcontrib><creatorcontrib>Yuan-Jiang Lee</creatorcontrib><creatorcontrib>Yu-Hsuan Li</creatorcontrib><creatorcontrib>Chung-Hung Kuo</creatorcontrib><creatorcontrib>Chun-Huai Li</creatorcontrib><creatorcontrib>Yao-Jen Hsieh</creatorcontrib><creatorcontrib>Chun-Ting Liu</creatorcontrib><creatorcontrib>Chen, Y.-J.E.</creatorcontrib><title>An LTPS TFT Demodulator for RFID Tags Embeddable on Panel Displays</title><title>IEEE transactions on microwave theory and techniques</title><addtitle>TMTT</addtitle><description>This paper presents an amplitude-shift-keying (ASK) demodulator for RF identification tags, which can be embedded on panel displays. The ASK demodulator was implemented in 3-mum low-temperature polycrystalline silicon (LTPS) thin-film transistor (TFT) technology. Since the threshold voltages of LTPS TFTs are higher than CMOS transistors, the conventional demodulator implementation will degrade the demodulator sensitivity significantly. The novel full-wave demodulator circuit was proposed to resolve the issue of high threshold voltage and reduce the ripples of the demodulated envelope. Operated at 8 V, the demodulator consumes 1.6 mW of power. The input carrier frequency was tested up to 13.56 MHz, and the highest ASK modulated data rate is 100 kb/s. The circuit size of the LTPS TFT demodulator is 500 mum times 450 mum.</description><subject>Amplitude shift keying</subject><subject>Circuits</subject><subject>Demodulation</subject><subject>Demodulator</subject><subject>Demodulators</subject><subject>Displays</subject><subject>low-temperature polycrystalline silicon (LTPS)</subject><subject>Panels</subject><subject>Radio frequency</subject><subject>Radiofrequency identification</subject><subject>RF identification (RFID)</subject><subject>RFID tags</subject><subject>Semiconductor devices</subject><subject>Silicon</subject><subject>system on panel (SoP)</subject><subject>Tags</subject><subject>Thin film transistors</subject><subject>Threshold voltage</subject><subject>Transistors</subject><subject>transponder</subject><issn>0018-9480</issn><issn>1557-9670</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNp9kE1PAyEQhonRxFr9AcYL8WC8rA6wLHCs_dAmNTaKZ0J3wWyzH3XpHvrvpWnjwYOHYULyDMP7IHRN4IEQUI_6VesHCqDiQQQj9AQNCOciUZmAUzQAIDJRqYRzdBHCOl5TDnKAnkYNXujlB9YzjSeubou-stu2wz7W-2w-wdp-BTytV64o7KpyuG3w0jauwpMybCq7C5fozNsquKtjH6LP2VSPX5LF2_N8PFokOVNqm2SCUipBpXE3TYVnOXeM-pwUwjuS5xaUolzACoDyDHymlLLUgZIp91lq2RDdHd7ddO1378LW1GXIXVXF37R9MCwmyhgnEbz_FySZIIyC5CKit3_Qddt3TYxhJM8UYUzSCJEDlHdtCJ3zZtOVte12hoDZ2zd7-2Zv3xztx5mbw0zpnPvlUxm1M8J-ADINe60</recordid><startdate>20090501</startdate><enddate>20090501</enddate><creator>Yueh-Hua Yu</creator><creator>Yuan-Jiang Lee</creator><creator>Yu-Hsuan Li</creator><creator>Chung-Hung Kuo</creator><creator>Chun-Huai Li</creator><creator>Yao-Jen Hsieh</creator><creator>Chun-Ting Liu</creator><creator>Chen, Y.-J.E.</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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The ASK demodulator was implemented in 3-mum low-temperature polycrystalline silicon (LTPS) thin-film transistor (TFT) technology. Since the threshold voltages of LTPS TFTs are higher than CMOS transistors, the conventional demodulator implementation will degrade the demodulator sensitivity significantly. The novel full-wave demodulator circuit was proposed to resolve the issue of high threshold voltage and reduce the ripples of the demodulated envelope. Operated at 8 V, the demodulator consumes 1.6 mW of power. The input carrier frequency was tested up to 13.56 MHz, and the highest ASK modulated data rate is 100 kb/s. The circuit size of the LTPS TFT demodulator is 500 mum times 450 mum.</abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/TMTT.2009.2017312</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | IEEE transactions on microwave theory and techniques, 2009-05, Vol.57 (5), p.1356-1361 |
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| subjects | Amplitude shift keying Circuits Demodulation Demodulator Demodulators Displays low-temperature polycrystalline silicon (LTPS) Panels Radio frequency Radiofrequency identification RF identification (RFID) RFID tags Semiconductor devices Silicon system on panel (SoP) Tags Thin film transistors Threshold voltage Transistors transponder |
| title | An LTPS TFT Demodulator for RFID Tags Embeddable on Panel Displays |
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