Publications

35 / 2,645 publications found.


  •  Nakatani, K., Shinjo, S., Miwa, S., Ma, R., Yamanaka, K., "3.0-3.6 GHz Wideband, over 46% Average Efficiency GaN Doherty Power Amplifier with Frequency Dependency Compensating Circuits", IEEE Radio Wireless Week (RWW), January 2017.
  •  Tanovic, O., Ma, R., Teo, K.H., "Novel Baseband Equivalent Models of Quadrature Modulated All-Digital Transmitters", IEEE Radio Wireless Week (RWW), January 2017.
  •  Ma, R., Shao, J., Shinjo, S., Teo, K.H., "Design of Broadband Three-way Sequential Power Amplifiers", IEEE International Symposium on Radio-Frequency Integration Technology (RFIT), DOI: 10.1109/RFIT.2016.7578196, August 2016.
  •  Chung, S.; Ma, R.; Teo, K.H., "Design Considerations on Wideband Envelope Termination for High Efficiency RF Power Amplifiers", Electronics Letters, DOI: 10.1049/el.2015.4328, ISSN: 0013-5194, Vol. 52, No. 6, pp. 460-462, March 2016.
    BibTeX Download PDFAbout TR2016-026
    • @article{Chung2016mar,
    • author = {Chung, S. and Ma, R. and Teo, K.H.},
    • title = {Design Considerations on Wideband Envelope Termination for High Efficiency RF Power Amplifiers},
    • journal = {Electronics Letters},
    • year = 2016,
    • volume = 52,
    • number = 6,
    • pages = {460--462},
    • month = mar,
    • publisher = {IET},
    • doi = {10.1049/el.2015.4328},
    • issn = {0013-5194},
    • url = {http://www.merl.com/publications/TR2016-026}
    • }
  •  Ma, R., "Recent Advances in Power Encoding and GaN Switching Technologies for Digital Transmitters", Asia-Pacific Microwave Conference (APMC) , DOI: 10.1109/APMC.2015.7413427, ISBN: 978-1-4799-8765-8, December 2015, vol. 3, pp. 1-3.
    BibTeX Download PDFAbout TR2015-131
    • @inproceedings{Ma2015dec,
    • author = {Ma, R.},
    • title = {Recent Advances in Power Encoding and GaN Switching Technologies for Digital Transmitters},
    • booktitle = {Asia-Pacific Microwave Conference (APMC)},
    • year = 2015,
    • volume = 3,
    • pages = {1--3},
    • month = dec,
    • doi = {10.1109/APMC.2015.7413427},
    • isbn = {978-1-4799-8765-8},
    • url = {http://www.merl.com/publications/TR2015-131}
    • }
  •  Ma, R., "A Review of Recent Development on Digital Transmitters with Integrated GaN Switch-Mode Amplifiers", IEEE International Symposium on Radio-Frequency Integration Technology (RFIT) , DOI: 10.1109/RFIT.2015.7377891, August 2015, pp. 73-75.
    BibTeX Download PDFAbout TR2015-115
    • @inproceedings{Ma2015aug,
    • author = {Ma, R.},
    • title = {A Review of Recent Development on Digital Transmitters with Integrated GaN Switch-Mode Amplifiers},
    • booktitle = {IEEE International Symposium on Radio-Frequency Integration Technology (RFIT)},
    • year = 2015,
    • pages = {73--75},
    • month = aug,
    • publisher = {IEEE},
    • doi = {10.1109/RFIT.2015.7377891},
    • url = {http://www.merl.com/publications/TR2015-115}
    • }
  •  Chung, S.; Ma, R., "Inter-Band Carrier Aggregation Digital Transmitter Architecture with Concurrent Multi-Band Delta-Sigma Modulation Using Out-of-Band Noise Cancellation", IEEE MTT-S International Microwave Symposium, DOI: 10.1109/MWSYM.2015.7166934, ISSN: 0149-645X, May 2015, pp. 1-4.
    BibTeX Download PDFAbout TR2015-043
    • @inproceedings{Chung2015may,
    • author = {Chung, S. and Ma, R.},
    • title = {Inter-Band Carrier Aggregation Digital Transmitter Architecture with Concurrent Multi-Band Delta-Sigma Modulation Using Out-of-Band Noise Cancellation},
    • booktitle = {IEEE MTT-S International Microwave Symposium},
    • year = 2015,
    • pages = {1--4},
    • month = may,
    • doi = {10.1109/MWSYM.2015.7166934},
    • issn = {0149-645X},
    • url = {http://www.merl.com/publications/TR2015-043}
    • }
  •  Shao, J.; Ma, R.; Teo, K.; Shinjo, S.; Yamanaka, K., "A Fully Analog Two-way Sequential GaN Power Amplifier with 40% Fractional Bandwidth", IEEE MTT-S International Wireless Symposium (IWS), March 2015.
    BibTeX Download PDFAbout TR2015-021
    • @inproceedings{Shao2015mar,
    • author = {Shao, J. and Ma, R. and Teo, K. and Shinjo, S. and Yamanaka, K.},
    • title = {A Fully Analog Two-way Sequential GaN Power Amplifier with 40% Fractional Bandwidth},
    • booktitle = {IEEE MTT-S International Wireless Symposium (IWS)},
    • year = 2015,
    • month = mar,
    • url = {http://www.merl.com/publications/TR2015-021}
    • }
  •  Chung, S.; Ma, R.; Shinjo, S.; Nakamizo, H.; Parsons, K.; Teo, K.H., "Concurrent Multiband Digital Outphasing Transmitter Architecture Using Multidimensional Power Coding", IEEE Transactions on Microwave Theory and Techniques, DOI: 10.1109/TMTT.2014.2387845, ISSN: 0018-9480, Vol. 63, No. 2, pp. 598-613, February 2015.
    BibTeX Download PDFAbout TR2015-004
    • @article{Chung2015feb,
    • author = {Chung, S. and Ma, R. and Shinjo, S. and Nakamizo, H. and Parsons, K. and Teo, K.H.},
    • title = {Concurrent Multiband Digital Outphasing Transmitter Architecture Using Multidimensional Power Coding},
    • journal = {IEEE Transactions on Microwave Theory and Techniques},
    • year = 2015,
    • volume = 63,
    • number = 2,
    • pages = {598--613},
    • month = feb,
    • doi = {10.1109/TMTT.2014.2387845},
    • issn = {0018-9480},
    • url = {http://www.merl.com/publications/TR2015-004}
    • }
  •  Chung, S.; Ma, R.; Teo, K.H.; Parsons, K., "Outphasing Multi-Level RF PWM for Inter-Band Carrier Aggregation in Digital Transmitters", IEEE Radio Wireless Week (RWW), January 2015.
    BibTeX Download PDFAbout TR2015-006
    • @inproceedings{Chung2015jan,
    • author = {Chung, S. and Ma, R. and Teo, K.H. and Parsons, K.},
    • title = {Outphasing Multi-Level RF PWM for Inter-Band Carrier Aggregation in Digital Transmitters},
    • booktitle = {IEEE Radio Wireless Week (RWW)},
    • year = 2015,
    • month = jan,
    • url = {http://www.merl.com/publications/TR2015-006}
    • }
  •  Zhu, Q.; Ma, R.; Duan, C.; Teo, K.H., "A 5-level Discrete-time Power Encoder with Measured Coding Efficiency of 70% for 20-MHz LTE Digital Transmitter", IEEE MTT-S International Microwave Symposium (IMS), DOI: 10.1109/MWSYM.2014.6848311, June 2014, pp. 1-3.
    BibTeX Download PDFAbout TR2014-037
    • @inproceedings{Zhu2014jun,
    • author = {Zhu, Q. and Ma, R. and Duan, C. and Teo, K.H.},
    • title = {A 5-level Discrete-time Power Encoder with Measured Coding Efficiency of 70% for 20-MHz LTE Digital Transmitter},
    • booktitle = {IEEE MTT-S International Microwave Symposium (IMS)},
    • year = 2014,
    • pages = {1--3},
    • month = jun,
    • publisher = {IEEE},
    • doi = {10.1109/MWSYM.2014.6848311},
    • url = {http://www.merl.com/publications/TR2014-037}
    • }
  •  Zhu, Q.; Ma, R.; Duan, C.; Yamanaka, K.; Teo, K.H., "FPGA Implemented Multi-Level IFPWM Power Coding for Class-S PA in an All-Digital GHz LTE Transmitter", IEEE International Wireless Symposium (IWS), March 2014.
    BibTeX Download PDFAbout TR2014-014
    • @inproceedings{Zhu2014mar,
    • author = {Zhu, Q. and Ma, R. and Duan, C. and Yamanaka, K. and Teo, K.H.},
    • title = {FPGA Implemented Multi-Level IFPWM Power Coding for Class-S PA in an All-Digital GHz LTE Transmitter},
    • booktitle = {IEEE International Wireless Symposium (IWS)},
    • year = 2014,
    • month = mar,
    • url = {http://www.merl.com/publications/TR2014-014}
    • }
  •  Zhu, Q.; Ma, R.; Duan, C.; Mukai, K.; Shinjo, S.; Teo, K.H., "A 5-Level Efficient IFPWM Power Coding Approach Encoding LTE for Class-S Digital-RF Transmitter with Distortion Correction", IEEE Radio Wireless Week (RWW), January 2014.
    BibTeX Download PDFAbout TR2014-003
    • @inproceedings{Zhu2014jan,
    • author = {Zhu, Q. and Ma, R. and Duan, C. and Mukai, K. and Shinjo, S. and Teo, K.H.},
    • title = {A 5-Level Efficient IFPWM Power Coding Approach Encoding LTE for Class-S Digital-RF Transmitter with Distortion Correction},
    • booktitle = {IEEE Radio Wireless Week (RWW)},
    • year = 2014,
    • month = jan,
    • url = {http://www.merl.com/publications/TR2014-003}
    • }
  •  Ma, R.; Goswami, S.; Yamanaka, K.; Komatsuzaki, Y.; Ohta, A., "A 40-dBm High Voltage Broadband GaN Class-J Power Amplifier for PoE Micro-Basestations", IEEE International Microwave Symposium (IMS), June 2013.
    BibTeX Download PDFAbout TR2013-045
    • @inproceedings{Ma2013jun,
    • author = {Ma, R. and Goswami, S. and Yamanaka, K. and Komatsuzaki, Y. and Ohta, A.},
    • title = {A 40-dBm High Voltage Broadband GaN Class-J Power Amplifier for PoE Micro-Basestations},
    • booktitle = {IEEE International Microwave Symposium (IMS)},
    • year = 2013,
    • month = jun,
    • url = {http://www.merl.com/publications/TR2013-045}
    • }
  •  Feng, P.; Teo, K.H.; Oishi, T.; Yamanaka, K.; Ma, R., "Design of Enhancement Mode Single-gate and Double-gate Multi-channel GaN HEMT with Vertical Polarity Inversion Heterostructure", International Symposium on Power Semiconductor Devices and ICs (ISPSD), May 2013.
    BibTeX Download PDFAbout TR2013-036
    • @inproceedings{Feng2013may,
    • author = {Feng, P. and Teo, K.H. and Oishi, T. and Yamanaka, K. and Ma, R.},
    • title = {Design of Enhancement Mode Single-gate and Double-gate Multi-channel GaN HEMT with Vertical Polarity Inversion Heterostructure},
    • booktitle = {International Symposium on Power Semiconductor Devices and ICs (ISPSD)},
    • year = 2013,
    • month = may,
    • url = {http://www.merl.com/publications/TR2013-036}
    • }