Evaluation on detection capability of down-link signals of mobile WiMAX and 3GPP LTE for detect-and-avoid in UWB systems. - Kenichi Takizawa; Hirotaka Yamane; Huan-Bang Li; Feng Lu; Kohei Ohno; Takuji Mochizuki; Takashi Okada; Kunio Yata; Hisashi Nishikawa; Takehiko Kobayashi (ISWCS, 2010)

Detection Capability of Downlink Signals in Mobile WiMAX and 3GPP LTE with an FFT-Based UWB Receiver. - Kenichi Takizawa; Hirotaka Yamane; Huan-Bang Li; Feng Lu; Kohei Ohno; Takuji Mochizuki; Takashi Okada; Kunio Yata; Hisashi Nishikawa; Takehiko Kobayashi (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2013)

Programmable multimode, multichannel universal wireless receiver with FFT-based multicarrier demodulator for batteryless wireless sensors. - Hisashi Nishikawa; Kei Igarashi; Takeshi Nishihashi; Yuya Shimizu; Ryota Suematsu; Ami Tanaka; Takakuni Douseki (IEEE SENSORS, 2016)

Contactless direct heart-motion sensor using femtofarad-level capacitance-variation detector with VHF-band LC-oscillator. - Hisashi Nishikawa; Yuta Kambara; Yuya Shimizu; Kei Igarashi; Ami Tanaka; Takakuni Douseki (IEEE SENSORS, 2016)

Wireless-power transmitter with distance sensor for ultra-small wearable devices. - Takeshi Nishihashi; Hisashi Nishikawa; Norifumi Kashiyama; Ami Tanaka; Takakuni Douseki (IEEE SENSORS, 2017)

Improvement of receiver sensitivity for enhancing IR-UWB performance for indoor positioning. - Huan-Bang Li; Ryu Miura; Toshinori Kagawa; Fumihide Kojima; Hisashi Nishikawa (PIMRC, 2017)

Proposals and Implementation of High Band IR-UWB for Increasing Propagation Distance for Indoor Positioning. - Huan-Bang Li; Ryu Miura; Hisashi Nishikawa; Toshinori Kagawa; Fumihide Kojima (IEICE Trans. Fundam. Electron. Commun. Comput. Sci., 2018)

Batteryless Speed and Timestamp Recorder with Multi-channel FM Radio Featuring Bicycle Frame Antenna. - Shogo Umemoto; Norifumi Kashiyama; Hisashi Nishikawa; Ami Tanaka; Takakuni Douseki (ICUFN, 2019)

IR-UWB Study for Intra-Satellite Wireless Communication. - Johta Awano; Atsushi Tomiki; Hisashi Nishikawa (WiSEE, 2019)

An RF Distance Sensor Utilizing Harmonic Signal from Rectenna for Power-Controlled Wireless Power Transmission System to Wearable Devices. - Norifumi Kashiyama; Kosuke Yoshida; Hisashi Nishikawa; Ami Tanaka; Takakuni Douseki (ICCE, 2020)

Alive Monitoring Sensor System with 2.45-GHz Wireless Power Transfer for Self-powered Wireless Sensor. - F. Nishimura; Y. Hirai; A. Kamitani; Ami Tanaka; Fumiyasu Utsunomiya; Hisashi Nishikawa; Takakuni Douseki (IEEE SENSORS, 2021)