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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 25  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
US 2022-01-25
11:25
Online Online Transversal type BAW filter based on c-axis zig-zag polarization inverted ScAlN multilayers
Kota Izumi, Takahiko Yanagitani (Waseda Univ.) US2021-59
Surface acoustic wave (SAW) transversal type filter is attractive because of their independent control of amplitude and ... [more] US2021-59
pp.5-10
MW 2020-12-10
16:00
Kanagawa
(Primary: On-site, Secondary: Online)
Experimental evaluation of signal-to-quantization noise power ratio of transversal filter with power amplifier for EPWM transmitter
Ryuta Sato, Natuki Utigiri, Taishi Sawayama, Yusuke Koike, Yotaro Umeda, Kyoya Takano (TUS) MW2020-77
In recent years, envelope pulse width modulation has been devised for transmitters in wireless communications to meet ma... [more] MW2020-77
pp.36-41
ICD, CPSY, CAS 2018-12-21
13:30
Okinawa   Power-amplifier-inserted Transversal Filter that Recovers Quantization Noise Power by CMOS Rectifier
Yuto Tanaka, Yohtaro Umeda, Kyoya Takano (Tokyo University of Science) CAS2018-78 ICD2018-62 CPSY2018-44
In this paper, we aim to improve power efficiency by using a CMOS rectifier for power-amplifier-inserted transversal fil... [more] CAS2018-78 ICD2018-62 CPSY2018-44
pp.1-5
MW, EMCJ, EST, IEE-EMC [detail] 2017-10-19
09:40
Akita Yupopo Comparison of Power Combining Methods in Power-amplifier-inserted Transversal Filter for EPWM Transmitters
Yuto Tanaka, Yohtaro Umeda (TUS), Yusuke Kozawa (Ibaraki Univ.) EMCJ2017-32 MW2017-84 EST2017-47
This paper compares power-amplifier-inserted transversal filter (PAITF) with 180º hybrids and T-junctions for envelope p... [more] EMCJ2017-32 MW2017-84 EST2017-47
pp.11-15
MW, WPT 2016-04-21
10:30
Tokyo Kikai-Shinko-Kaikan Bldg. Application of Window Function in Transversal Filter for Suppressing Quantization Noise in Envelope Pulse-Width Modulation Transmitter
Takahito Sasaki, Yohtaro Umeda, Yusuke Kozawa (Tokyo Univ. of Science) WPT2016-1 MW2016-1
This paper evaluates the improvement in signal to noise power ratio (SNR) in the EPWM transmitter using power-amplifier-... [more] WPT2016-1 MW2016-1
pp.1-6
MW 2015-11-19
10:30
Okinawa Univ. of the Ryukyus Frequency Detection Method with Multi-Transversal Filters
Kenichi Tajima, Morishige Hieda (Mitsubishi Electric) MW2015-121
This paper presents a novel frequency detection method using multi-transversal filters. The three multi-transversal filt... [more] MW2015-121
pp.5-9
MW 2015-05-29
16:50
Tokyo The Univ. of Electro-Commun. Design of Microstrip Bandpass Filter with Transmission Zeros Using Half-wavelength Resonator Transversal Array
Toshiki Kato, Masataka Ohira, Zhewang Ma (Saitama Univ.) MW2015-37
We have reported a new design method for multi-mode bandpass filters with transmission zeros (TZs) based on a synthesis ... [more] MW2015-37
pp.93-98
MW, ICD 2015-03-05
15:30
Fukui University of Fukui [Special Talk] A Parameter-Extraction Method for Microwave Transversal Resonator Array Bandpass Filters with Direct Source/Load Coupling
Masataka Ohira, Zhewang Ma (Saitama Univ.) MW2014-212 ICD2014-125
A new simple and straightforward parameter extraction method for a transversal resonator array bandpass filter is descir... [more] MW2014-212 ICD2014-125
pp.55-60
RCS, SR, SRW
(Joint)
2015-03-04
15:25
Tokyo Tokyo Institute of Technology Fundamental Study on Structure and Adaptive Control of Time-Frequency 2D AGC Using Analogue Transversal Filter
Naotoshi Yamasaki, Makoto Taromaru, Mai Ohta (Fukuoka Univ.) RCS2014-331
Software defined radio (SDR) receivers A/D convert the multiple waves in the whole receivable band, and it can select an... [more] RCS2014-331
pp.177-182
MW, ED 2015-01-16
15:20
Tokyo Kikai-Shinko-Kaikan Bldg. Higher-order Bandpass Characteristics of Four-path Power-amplifier-inserted Transversal Filter in EPWM Transmitter for FPGA Implementation
Kazuaki Watanabe, Shota Fujioka, Takashi Yano, Yohtaro Umeda, Yusuke Kozawa (Tokyo Univ. of Science) ED2014-135 MW2014-199
This paper designs EPWM transmitter using higher-order band-pass characteristics of 4-path power-amplifier-inserted tran... [more] ED2014-135 MW2014-199
pp.105-110
MW 2014-12-18
09:25
Tokyo Aoyama Gakuin Univ. Aoyama Campus A study of a diplexer using transversal filters based on microstrip coupled lines
Kazuyuki Hayashi, Koji Wada (UEC) MW2014-149
In this paper, we first examine the basic characteristics of transversal filters using microstrip coupled lines by elect... [more] MW2014-149
pp.7-12
RCC, ASN, NS, RCS, SR
(Joint)
2014-08-01
09:50
Kyoto Kyoto Terrsa Adaptive Control Algorithm of Time-Frequency 2D AGC using Analogue Transversal Filter -- Fundamental Study of Frequency Axis Dynamic Range Compression Control --
Naotoshi Yamasaki, Makoto Taromaru, Mai Ohta (Fukuoka Univ.) SR2014-58
Software defined radio (SDR) receivers A/D convert the multiple waves in the whole receivable band, and it can select an... [more] SR2014-58
pp.203-207
MW, OPE, EMT, MWP, EST, IEE-EMT [detail] 2014-07-17
10:50
Hokkaido Muroran Inst. of Tech. A Parameter-Extraction Technique for Transversal Resonator Array Bandpass Filters with Symmetric and Asymmetric Structures
Masataka Ohira, Zhewang Ma (Saitama Univ.) MW2014-55 OPE2014-24 EST2014-16 MWP2014-13
We have already presented a generalized parameter-extraction method for transversal resonator array bandpass filters, wh... [more] MW2014-55 OPE2014-24 EST2014-16 MWP2014-13
pp.11-16
RCS 2014-06-17
15:20
Okinawa Okinawa-ken Seinenkaikan (Naha) Proposal of Time-Frequency 2D AGC using Analogue Transversal Filter -- Fundamental Study on Tap Interval and Total Delay Time of Tapped Delay Line and Receiver Architecture --
Makoto Taromaru, Naotoshi Yamasaki, Mai Ohta (Fukuoka Univ.) RCS2014-51
We propose a receiver architecture using the "Two-dimensional AGC," that controls level of the received signals in the s... [more] RCS2014-51
pp.109-112
MW 2013-12-19
09:55
Saitama Saitama Univ. Application of Frequency-Dependent Direct Source/Load Coupling to Design of Dual-mode Loop Resonator Filter with Transmission Zeros
Hiroyuki Aoyama, Masataka Ohira, Zhewang Ma (Saitama Univ.) MW2013-152
In microwave filter design, transmission zeros (TZs) generated by cross couplings and/or a direct source/load (S/L) coup... [more] MW2013-152
pp.7-12
EMCJ, IEE-EMC, MW, EST [detail] 2013-10-25
11:45
Miyagi Tohoku Univ. An Extraction Method of Equivalent-Circuit Parameters for Transversal Resonator Array Bandpass Filters Considering Loss Effects
Masataka Ohira, Zhewang Ma (Saitama Univ.) EMCJ2013-81 MW2013-121 EST2013-73
This paper proposes a novel technique for extracting all the equivalent-circuit parameters of a transversal resonator ar... [more] EMCJ2013-81 MW2013-121 EST2013-73
pp.125-130
EST, MWP, OPE, MW, EMT, IEE-EMT [detail] 2013-07-19
11:20
Hokkaido Wakkanai Synthesis Cultural Center An Insertion-Loss Formula for Transversal Resonator Array Bandpass Filters and Its Verification of Theory and Application
Masataka Ohira, Zhewang Ma (Saitama Univ.) MW2013-85 OPE2013-54 EST2013-49 MWP2013-44
In a direct-coupled resonator filter, which is constructed by cascade connection of resonators, the insertion loss at it... [more] MW2013-85 OPE2013-54 EST2013-49 MWP2013-44
pp.235-240
MW 2012-12-14
10:00
Yamanashi Univ. of Yamanashi Accurate Design of Bandpass Filters with Transmission Zeros Based on Synthesis Theory of Transversal Array Network
Hiroyuki Aoyama, Masataka Ohira, Zhewang Ma (Saitama Univ.) MW2012-135
In microwave filters, it is well known that using direct source/load (S/L) coupling makes it possible to generate trans... [more] MW2012-135
pp.49-54
MWP, OPE, MW, EMT, EST, IEE-EMT [detail] 2012-07-27
09:50
Hokkaido Hokkaido Univ. A Calculation Method of External Q Factor for Multi-Mode Filter Design Based on Synthesis of Transversal Resonator Array Filter
Masataka Ohira, Zhewang Ma (Saitama Univ.) MW2012-47 OPE2012-40 EST2012-29 MWP2012-28
Based on a synthesis theory of transversal resonator array filter, a bandpass filter having transmission zeros can be ea... [more] MW2012-47 OPE2012-40 EST2012-29 MWP2012-28
pp.131-136
MW, WPT
(Joint)
2012-05-25
10:55
Kyoto Kyoto Univ. Design of Multi-Mode Bandpass Filter with Multiple Transmission Zeros Using Transversal Array Configuration of Meander Loop Resonators
Masataka Ohira, Zhewang Ma (Saitama Univ.) MW2012-16
In this paper, we propose a new multi-mode bandpass filter (BPF) configuration, which is a transversal array of two mean... [more] MW2012-16
pp.33-38
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