• 542 Citations
  • 12 h-Index
1988 …2019

Research output per year

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Research Output

2007

A highly integrated quasi-millimeter wave transmitter MMIC using 3D-MMIC technology

Yamaguchi, Y., Kaho, T., Uehara, K., Nagamine, S., Toriyama, Y., Shirosaki, T. & Taniguchi, T., Dec 1 2007, 2007 Asia-Pacific Microwave Conference, APMC. 4555130. (Asia-Pacific Microwave Conference Proceedings, APMC).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

A highly integrated X-band frequency quadrupler MMIC using 3D-MMIC technology

Yamaguchi, Y., Kaho, T. & Uehara, K., Oct 2 2007, Proceedings of the 2007 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2007. p. 757-760 4 p. 4266541. (Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

An autonomous adaptive base station that supports multiple wireless network systems

Akabane, K., Shiba, H., Matsui, M. & Uehara, K., Jan 1 2007, 2007 2nd IEEE International Symposium on New Frontiers in Dynamic Spectrum Access Networks. IEEE Computer Society, p. 85-88 4 p. 4221480. (2007 2nd IEEE International Symposium on New Frontiers in Dynamic Spectrum Access Networks).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

A novel cooperative sensing technique for cognitive radio

Matsui, M., Shiba, H., Akabane, K. & Uehara, K., Dec 1 2007, 18th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC'07. 4394725. (IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

27 Citations (Scopus)

Broadband low noise amplifier with high linearity for software-defined radios

Kawashima, M., Yamaguchi, Y., Nishikawa, K. & Uehara, K., Dec 1 2007, European Microwave Week 2007 Conference Proceedings, EUMIC 2007 - 10th European Conference on Wireless Technology, ECWT 2007. p. 323-326 4 p. 4404012. (European Microwave Week 2007 Conference Proceedings, EuMW 2007 - 10th European Conference on Wireless Technology, ECWT 2007).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Broadband low noise amplifier with high linearity for software-defined radios

Kawashima, M., Yamaguchi, Y., Nishikawa, K. & Uehara, K., Dec 1 2007, European Microwave Week 2007 Conference Proceedings, EuMW 2007 - 2nd European Microwave Integrated Circuits Conference, EuMIC 2007. p. 243-246 4 p. 4412694. (European Microwave Week 2007 Conference Proceedings, EuMW 2007 - 2nd European Microwave Integrated Circuits Conference, EuMIC 2007).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Miniaturized multilayer inductors on GaAs three-dimensional MMIC

Kaho, T., Sasaki, M., Yamaguchi, Y., Nishikawa, K. & Uehara, K., Dec 1 2007, 2007 Korea-Japan Microwave Conference, KJMW2007, Technical Digest 2007. p. 149-152 4 p. 4402262. (2007 Korea-Japan Microwave Conference, KJMW2007, Technical Digest 2007).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

11 Citations (Scopus)
2008

A cooperative sensing technique with weighting based on distance between radio stations

Matsui, M., Shiba, H., Akabane, K. & Uehara, K., Dec 1 2008, 2008 14th Asia-Pacific Conference on Communications, APCC 2008. 4773672. (2008 14th Asia-Pacific Conference on Communications, APCC 2008).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Citations (Scopus)

A very low spurious X-band frequency quadrupler with very high integration using 3D-MMIC technology

Yamaguchi, Y., Kaho, T. & Uehara, K., Nov 2008, In : IEICE Transactions on Electronics. E91-C, 11, p. 1744-1750 7 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)

Channel assignment and reallocation algorithms for cognitive radio systems

Hiraga, K., Akabane, K., Shiba, H. & Uehara, K., Dec 1 2008, 2008 14th Asia-Pacific Conference on Communications, APCC 2008. 4773702. (2008 14th Asia-Pacific Conference on Communications, APCC 2008).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

Performance evaluation of an autonomous adaptive base station that supports multiple wireless network systems

Akabane, K., Shiba, H., Matsui, M. & Uehara, K., Jan 1 2008, In : IEICE Transactions on Communications. E91-B, 1, p. 22-28 7 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Prototype of a cognitive radio system with cooperative sensing and interference alerting

Matsui, M., Akabane, K., Shiba, H. & Uehara, K., Sep 23 2008, Proceedings of the 3rd International Conference on Cognitive Radio Oriented Wireless Networks and Communications, CrownCom 2008. 4562482. (Proceedings of the 3rd International Conference on Cognitive Radio Oriented Wireless Networks and Communications, CrownCom 2008).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)
2009

60-GHz microstrip antenna with stacked rings using multi-layer LTCC substrate

Seki, T., Hiraga, K., Nishikawa, K. & Uehara, K., Oct 16 2009, European Conference on Antennas and Propagation, EuCAP 2009, Proceedings. p. 3797-3800 4 p. 5068416. (European Conference on Antennas and Propagation, EuCAP 2009, Proceedings).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

A compact X-band balanced frequency doubler on GaAs pHEMT 3D MMIC

Kaho, T., Yamaguchi, Y., Okazaki, H. & Uehara, K., Dec 1 2009, 2009 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2009. p. 237-240 4 p. 5383706. (2009 IEEE International Symposium on Radio-Frequency Integration Technology, RFIT 2009).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Lens-coupled imaging arrays for the millimeter-and submillimeter-wave regions

Uehara, K., Miyashita, K., Natsume, K. I., Hatakeyama, K. & Mizuno, K., Jan 1 2009, Active Antennas and Quasi-Optical Arrays. John Wiley and Sons Inc., p. 198-203 6 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Small size base station antenna using phase difference feed for narrowband ubiquitous communication

Seki, T., Hiraga, K., Nishikawa, K. & Uehara, K., Dec 1 2009, IEEE MTT-S International Microwave Workshop Series on Wireless Sensing, Local Positioning and RFID - Proceedings, IMWS 2009 - Croatia. 5307864. (IEEE MTT-S International Microwave Workshop Series on Wireless Sensing, Local Positioning and RFID, Proceedings, IMWS 2009 - Croatia).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Towards ultrahigh-speed high-capacity networks

Jinno, M., Kimura, H., Hibino, Y., Uehara, K., Kukutsu, N., Ito, F. & Matsuoka, S., May 1 2009, In : NTT Technical Review. 7, 5

Research output: Contribution to journalArticle

11 Citations (Scopus)

Ultra high speed short-range parallel transmission using millimeter-wave frequency band

Hiraga, K., Seki, T., Nishimori, K., Nishikawa, K. & Uehara, K., Dec 1 2009, APMC 2009 - Asia Pacific Microwave Conference 2009. p. 1212-1215 4 p. 5384427. (APMC 2009 - Asia Pacific Microwave Conference 2009).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2010

A compact K/Ka-band transceiver MMIC using GaAs 3D-MMIC technology

Kaho, T., Yamaguchi, Y. & Uehara, K., Dec 1 2010, 2010 Asia-Pacific Microwave Conference Proceedings, APMC 2010. p. 822-825 4 p. 5728467. (Asia-Pacific Microwave Conference Proceedings, APMC).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

An analysis of multi-layer inductors for miniaturizing of GaAs MMIC

Yamaguchi, Y., Kaho, T., Sasaki, M., Nishikawa, K., Seki, T., Nakagawa, T., Uehara, K. & Araki, K., Jul 2010, In : IEICE Transactions on Electronics. E93-C, 7, p. 1119-1125 7 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Combined Nyquist and compressed sampling method for radio wave data compression of a heterogeneous network system

Lee, D., Yamada, T., Shiba, H., Yamaguchi, Y. & Uehara, K., Dec 2010, In : IEICE Transactions on Communications. E93-B, 12, p. 3238-3247 10 p.

Research output: Contribution to journalArticle

9 Citations (Scopus)

Multi-layer coupled band-pass filter for 60 GHz LTCC system-on-package

Hiraga, K., Seki, T., Nishikawa, K. & Uehara, K., Dec 1 2010, 2010 Asia-Pacific Microwave Conference Proceedings, APMC 2010. p. 259-262 4 p. 5728695. (Asia-Pacific Microwave Conference Proceedings, APMC).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Special section on wireless distributed networks

Uehara, K., Dec 2010, In : IEICE Transactions on Communications. E93-B, 12, 1 p.

Research output: Contribution to journalEditorial

Ultra compact RFICs using three-dimensional MMIC technology

Kaho, T., Yamaguchi, Y., Nishikawa, K., Toyoda, I. & Uehara, K., Oct 15 2010, 2010 IEEE MTT-S International Microwave Symposium, MTT 2010. p. 1304-1307 4 p. 5517752. (IEEE MTT-S International Microwave Symposium Digest).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Ultra-high-speed transmission over millimeter-wave using microstrip antenna array

Hiraga, K., Seki, T., Nishimori, K., Nishikawa, K. & Uehara, K., May 21 2010, 2010 IEEE Radio and Wireless Symposium, RWW 2010 - Paper Digest. p. 673-676 4 p. 5434243. (2010 IEEE Radio and Wireless Symposium, RWW 2010 - Paper Digest).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)
2011

A low-noise, high-gain quasi-millimeter-wave receiver MMIC with a very high degree of integration using 3D-MMIC technology

Kaho, T., Yamaguchi, Y., Uehara, K. & Araki, K., Oct 2011, In : IEICE Transactions on Electronics. E94-C, 10, p. 1548-1556 9 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

A simultaneous receiving multi-band mixer with independent gain control

Kaho, T., Yamaguchi, Y., Shiba, H., Akabane, K., Uehara, K. & Araki, K., Dec 1 2011, Asia-Pacific Microwave Conference Proceedings, APMC 2011. p. 383-386 4 p. 6173766. (Asia-Pacific Microwave Conference Proceedings, APMC).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

12 Citations (Scopus)

Compressed sensing technology for flexible wireless system

Lee, D., Yamada, T., Shiba, H., Yamaguchi, Y. & Uehara, K., Mar 1 2011, In : NTT Technical Review. 9, 3

Research output: Contribution to journalArticle

2 Citations (Scopus)

High speed parallel data transmission and power transmission technology for wireless repeater system

Seki, T., Hiraga, K., Nishimori, K., Nishikawa, K. & Uehara, K., Jul 1 2011, Proceedings of the 5th European Conference on Antennas and Propagation, EUCAP 2011. p. 3913-3916 4 p. 5782427. (Proceedings of the 5th European Conference on Antennas and Propagation, EUCAP 2011).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Signal separation and reconstruction method for simultaneously received multi-system signals in a unified wireless system

Yamada, T., Lee, D., Shiba, H., Yamaguchi, Y. & Uehara, K., 2011, Proceedings of the 2011 6th International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications, CROWNCOM 2011. p. 136-140 5 p. 6030763. (Proceedings of the 2011 6th International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications, CROWNCOM 2011).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)
2012

1-bit compressed sensing with edge detection for compressed radio wave data transfer

Yamada, T., Lee, D., Toshinaga, H., Akabane, K., Yamaguchi, Y. & Uehara, K., Dec 1 2012, p. 407-411. 5 p.

Research output: Contribution to conferencePaper

3 Citations (Scopus)

A dual-band simultaneous receiving mixer with independent and linear gain control

Kaho, T., Yamaguchi, Y., Shiba, H., Akabane, K. & Uehara, K., Dec 1 2012, 2012 Asia-Pacific Microwave Conference, APMC 2012 - Proceedings. p. 160-162 3 p. 6421532. (Asia-Pacific Microwave Conference Proceedings, APMC).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

A method for controlling phase difference between propagation channels for short-range MIMO transmission

Sakamoto, K., Hiraga, K., Seki, T., Nakagawa, T. & Uehara, K., Dec 1 2012, Conference Proceedings of the 2012 International Symposium on Antennas and Propagation, ISAP 2012. p. 754-757 4 p. 6393964. (IEEE Antennas and Propagation Society, AP-S International Symposium (Digest)).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Effectiveness of short-range MIMO using dual-polarized antenna

Hiraga, K., Seki, T., Nishimori, K. & Uehara, K., Jan 2012, In : IEICE Transactions on Communications. E-95-B, 1, p. 87-96 10 p.

Research output: Contribution to journalArticle

6 Citations (Scopus)

Signal separation and reconstruction method for simultaneously received multi-system signals in flexiblewireless system

Yamada, T., Lee, D., Shiba, H., Yamaguchi, Y., Akabane, K. & Uehara, K., Apr 2012, In : IEICE Transactions on Communications. E95-B, 4, p. 1085-1092 8 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Sparse-matrix-based compressed sensing for spectrum sensing in Flexible Wireless System

Lee, D., Kabashima, Y., Takeda, K., Yamada, T., Akabane, K. & Uehara, K., Dec 1 2012, p. 418-422. 5 p.

Research output: Contribution to conferencePaper

1 Citation (Scopus)

Spectrum sensing for networked system using 1-bit compressed sensing with partial random circulant measurement matrices

Lee, D., Sasaki, T., Yamada, T., Akabane, K., Yamaguchi, Y. & Uehara, K., Aug 20 2012, IEEE 75th Vehicular Technology Conference, VTC Spring 2012 - Proceedings. 6240259. (IEEE Vehicular Technology Conference).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Citations (Scopus)
2013

A broadband low-noise wide dynamic range SiGe front-end receiver IC for multi-band access points

Kaho, T., Yamaguchi, Y., Shiba, H., Kawashima, M., Toshinaga, H. & Uehara, K., Dec 1 2013, 2013 Asia-Pacific Microwave Conference Proceedings, APMC 2013. p. 267-269 3 p. 6695115. (Asia-Pacific Microwave Conference Proceedings, APMC).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

6 Citations (Scopus)

A new architecture for concurrent dual-band digital predistortion

Ando, I., Tran, G. K., Araki, K., Yamada, T., Kaho, T., Yamaguchi, Y. & Uehara, K., Dec 1 2013, 2013 Asia-Pacific Microwave Conference Proceedings, APMC 2013. p. 152-154 3 p. 6695221. (Asia-Pacific Microwave Conference Proceedings, APMC).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

An SDM method utilizing height pattern due to two-ray fading characteristics

Hiraga, K., Sakamoto, K., Arai, M., Seki, T., Nakagawa, T. & Uehara, K., Dec 1 2013, In : IEEE Antennas and Wireless Propagation Letters. 12, p. 1622-1626 5 p., 6680603.

Research output: Contribution to journalArticle

3 Citations (Scopus)

Current status, issues, and future perspective of wireless home networks

Takatori, Y., Mizoguchi, M., Uehara, K., Yoshino, S., Harada, M. & Okada, K., Mar 1 2013, In : NTT Technical Review. 11, 3

Research output: Contribution to journalReview article

3 Citations (Scopus)

Nonlinear modeling and analysis on concurrent amplification of dual-band gaussian signals

Ando, I., Tran, G. K., Araki, K., Yamada, T., Kaho, T., Yamaguchi, Y. & Uehara, K., Oct 2013, In : IEICE Transactions on Electronics. E96-C, 10, p. 1254-1262 9 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Performance evaluation of short-range MIMO using a method for controlling phase difference between each propagation channel

Sakamoto, K., Hiraga, K., Seki, T., Nakagawa, T. & Uehara, K., Oct 2013, In : IEICE Transactions on Communications. E96-B, 10, p. 2513-2520 8 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)

Study on short-range MIMO transmission using interference cancellation by antenna directivities

Arai, M., Seki, T., Hiraga, K., Nakagawa, T. & Uehara, K., Dec 1 2013, 2013 Asia-Pacific Microwave Conference Proceedings, APMC 2013. p. 395-397 3 p. 6695158. (Asia-Pacific Microwave Conference Proceedings, APMC).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)
2014

An SD method utilizing null dependency on transmission distance due to two-ray fading

Hiraga, K., Sakamoto, K., Arai, M., Seki, T., Nakagawa, T. & Uehara, K., Feb 24 2014, In : IEEE Antennas and Wireless Propagation Letters. 13, p. 126-129 4 p., 6701188.

Research output: Contribution to journalArticle

3 Citations (Scopus)

A study of short-range MIMO transmission utilizing polarization multiplexing for the simplification of decoding

Hiraga, K., Sakamoto, K., Nishimori, K., Seki, T., Nakagawa, T. & Uehara, K., Jan 1 2014, In : IEICE Transactions on Communications. E97-B, 2, p. 459-468 10 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Spatial division transmission without signal processing for MIMO detection utilizing two-ray fading

Hiraga, K., Sakamoto, K., Arai, M., Seki, T., Nakagawa, T. & Uehara, K., Nov 1 2014, In : IEICE Transactions on Communications. E97B, 11, p. 2491-2501 11 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Study on MIMO transmission using orthogonal directivities obtained from higher order microstrip antenna modes

Arai, M., Seki, T., Hiraga, K., Sakamoto, K., Toshinaga, H., Nakagawa, T. & Uehara, K., Mar 27 2014, In : Electronics Letters. 50, 7, p. 562-564 3 p.

Research output: Contribution to journalArticle

2 Citations (Scopus)