H
Hiroaki Matsui
Researcher at Renesas Electronics
Publications - 12
Citations - 226
Hiroaki Matsui is an academic researcher from Renesas Electronics. The author has contributed to research in topics: Amplifier & Signal. The author has an hindex of 6, co-authored 11 publications receiving 217 citations.
Papers
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Patent
Semiconductor integrated circuit for communication
TL;DR: In this paper, the authors presented a semiconductor integrated circuit for communication (RF IC) realizing high yield without deteriorating a carrier leak characteristic even when a modulation circuit is formed by using cheep parts with large variations.
Proceedings ArticleDOI
13.4 A 6.3mW BLE transceiver embedded RX image-rejection filter and TX harmonic-suppression filter reusing on-chip matching network
Tomohiro Sano,Masakazu Mizokami,Hiroaki Matsui,Keisuke Ueda,Kenichi Shibata,Kenji Toyota,Tatsuhito Saitou,Hisayasu Sato,Koichi Yahagi,Yoshihiro Hayashi +9 more
TL;DR: In this paper, a BLE transceiver, with a reconfigurable filter, embedded into an on-chip matching network without any external components is presented.
Patent
Direct-conversion transmitting circuit and integrated transmitting/receiving circuit
Satoshi Tanaka,Masamichi Tanabe,Yasuyuki Okuma,Taizo Yamawaki,Koichi Yahagi,Hiroaki Matsui,Robert Astle Henshaw +6 more
TL;DR: In this paper, a transmitter that does not require a high-performance low-noise VCO restricting cost reduction thereof and that can reduce the number of parts without requiring an RF filter is provided.
Patent
Transmitter and wireless communication apparatus using same
TL;DR: In this article, a transmitter that can reduce noise without using an SAW filter whose IC integration is hard, and copes with two modulation formats of constant envelope modulation and non-constant envelope modulation, and a downsized and low-cost wireless communication apparatus that uses the transmitter are provided.
Patent
Communication semiconductor integrated circuit, communication electronic component and wireless communication system
TL;DR: In this article, the amplitude control loop is used to vary the gain of the variable gain amplifier on a feedback path, so that the forward path is decided on the basis of the detected gain and the gain held in the register.