近年，RFID技術のNFCタグおよびNFC対応高機能携帯電話などを使用したアプリケーションや応用機器の話題が多い.入退出管理やオフィスセキュリティ管理などにも使用でき，専用のRFIDリーダ機器が不要などメリットも大きく，機器間通信(P2P)も可能なため高速無線データ転送ができるなど，NFC機能やRFID技術の用途が広がっている.RFID機器として，周波数13.56MHzのHF帯NFCリーダや920MHzのUHF帯GEN2リーダ，2.45GHzのマイクロ波帯ミューチップリーダ等がある.なかでもHF帯NFC(Near Field Communication)は携帯電話や高機能携帯電話（スマートフォン），タブレット，パソコン等に組込み対応となり，電子マネーなどインターネット電子決済システムなど，将来的に急速的な普及が期待される.本報告では，NFCリーダ(P2P)にも対応可能な，HF帯RFIDマルチリーダ（ISO-14443A,B ISO-18092 ISO-15693)の送受信回路を試作し，電波伝搬特性ゃェアインタフエース回路の検討（送信系），および測定•評価結果を示す.%Recently, there is much subject of the application and application apparatus which use the highly efficient mobile phone corresponding to the NFC tag and NFC of RFID technology, etc. It can be used for an office security management. And merits, such as exclusive leader apparatus needlessness, are large. The use of a NFC chip - since the communication between apparatus (P2P) is also possible, high-speed data transfer can be performed - or RFID technology has spread. As for the equipment reader/writer of RFID, There are the passive NFC reader/writer for the HF band of 13.56MHz, and A Gen2 reader/writer, for the UHF band of 920MHz, and μ-chip reader/writer for microwave band of 2.45GHz. The HF band NFC (Near Field Communication) is built into a mobile phone, highly efficient mobile phone (smart phone), and tablet personal computer etc., and urgency spread will be expected for the Internet electronic payment system, such as electronic money, etc. in the future. By this report, the transceiver circuit of multi-reader (ISO-14443A,B ISO-18092 ISO-15693) of HF band RFID is made as an experiment, and Air-interface circuit examination(transmitting system), measurement, and an evaluation result are shown.
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