JP2008124540A - 通信装置 - Google Patents

通信装置 Download PDF

Info

Publication number
JP2008124540A
JP2008124540A JP2006302846A JP2006302846A JP2008124540A JP 2008124540 A JP2008124540 A JP 2008124540A JP 2006302846 A JP2006302846 A JP 2006302846A JP 2006302846 A JP2006302846 A JP 2006302846A JP 2008124540 A JP2008124540 A JP 2008124540A
Authority
JP
Japan
Prior art keywords
signal
amplitude
output
modulation
circuit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP2006302846A
Other languages
English (en)
Japanese (ja)
Other versions
JP2008124540A5 (enExample
Inventor
Makoto Taroumaru
眞 太郎丸
Takashi Ohira
孝 大平
Satoshi Tsukamoto
悟司 塚本
Hisanori Amasaki
央典 尼嵜
Kazuto Yano
一人 矢野
Nobuhiko Ando
暢彦 安藤
Shoichi Kitazawa
祥一 北沢
Toshiro Kodera
敏郎 小寺
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ATR Advanced Telecommunications Research Institute International
Original Assignee
ATR Advanced Telecommunications Research Institute International
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ATR Advanced Telecommunications Research Institute International filed Critical ATR Advanced Telecommunications Research Institute International
Priority to JP2006302846A priority Critical patent/JP2008124540A/ja
Publication of JP2008124540A publication Critical patent/JP2008124540A/ja
Publication of JP2008124540A5 publication Critical patent/JP2008124540A5/ja
Pending legal-status Critical Current

Links

Images

Landscapes

  • Transmitters (AREA)
JP2006302846A 2006-11-08 2006-11-08 通信装置 Pending JP2008124540A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006302846A JP2008124540A (ja) 2006-11-08 2006-11-08 通信装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006302846A JP2008124540A (ja) 2006-11-08 2006-11-08 通信装置

Publications (2)

Publication Number Publication Date
JP2008124540A true JP2008124540A (ja) 2008-05-29
JP2008124540A5 JP2008124540A5 (enExample) 2009-10-22

Family

ID=39508878

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006302846A Pending JP2008124540A (ja) 2006-11-08 2006-11-08 通信装置

Country Status (1)

Country Link
JP (1) JP2008124540A (enExample)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8693578B2 (en) 2009-12-08 2014-04-08 Nec Corporation Transmission device
JP2014175696A (ja) * 2013-03-06 2014-09-22 Denso Corp 車両用音入力制御装置および車両用音入力制御方法
JP2015220479A (ja) * 2014-05-14 2015-12-07 三菱電機株式会社 低歪み送信機
US9444409B2 (en) 2014-12-18 2016-09-13 Fujitsu Limited Amplification device and amplification method

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003501930A (ja) * 1999-06-04 2003-01-14 インフィニオン テクノロジーズ ノース アメリカ コーポレイション 利得が切り換えられる低雑音増幅器および方法
US6794931B2 (en) * 2000-02-25 2004-09-21 Andrew Corporation Switched amplifier
JP2004297277A (ja) * 2003-03-26 2004-10-21 Hitachi Ltd 高周波増幅回路およびそれを用いた送信機、受信機ならびに送受信機

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003501930A (ja) * 1999-06-04 2003-01-14 インフィニオン テクノロジーズ ノース アメリカ コーポレイション 利得が切り換えられる低雑音増幅器および方法
US6794931B2 (en) * 2000-02-25 2004-09-21 Andrew Corporation Switched amplifier
JP2004297277A (ja) * 2003-03-26 2004-10-21 Hitachi Ltd 高周波増幅回路およびそれを用いた送信機、受信機ならびに送受信機

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8693578B2 (en) 2009-12-08 2014-04-08 Nec Corporation Transmission device
JP2014175696A (ja) * 2013-03-06 2014-09-22 Denso Corp 車両用音入力制御装置および車両用音入力制御方法
JP2015220479A (ja) * 2014-05-14 2015-12-07 三菱電機株式会社 低歪み送信機
US9444409B2 (en) 2014-12-18 2016-09-13 Fujitsu Limited Amplification device and amplification method

Similar Documents

Publication Publication Date Title
US8081935B2 (en) Multiple-mode modulator to process baseband signals
US7702299B2 (en) Modulation circuit device, modulation method and radio communication device
US8693578B2 (en) Transmission device
US6947713B2 (en) Amplitude- and frequency- or phase-modulated radio frequency signal generator and the transmitter incorporating same
JP4637850B2 (ja) 送信装置、通信機器、及び移動無線機
Rudolph Kahn EER technique with single-carrier digital modulations
JPWO2012157418A1 (ja) 電源装置、およびそれを用いた送信装置、並びに電源装置の動作方法
US8489046B2 (en) Signal decomposition methods and apparatus for multi-mode transmitters
Helaoui et al. A new mode-multiplexing LINC architecture to boost the efficiency of WiMAX up-link transmitters
WO2010001806A1 (ja) 電力増幅装置と電力増幅方法
US9668208B2 (en) Operating point setting of an amplifier
US8300729B2 (en) Methods and apparatus for reducing high-frequency events in polar domain signals
US7406131B2 (en) Method and arrangement for digital transmission using AM transmitters
US20050164660A1 (en) Transmission circuit
Taromaru et al. An EER transmitter architecture with burst-width envelope modulation based on triangle-wave comparison PWM
JP2008124540A (ja) 通信装置
KR100751999B1 (ko) Rf 신호 발생 방법 및 장치
JP2009159343A (ja) 通信装置
US12143068B2 (en) Envelope tracking system for dynamically adjusting gain compression of power amplifier in response to number of active resource blocks in channel bandwidth, associated envelope tracking method, and associated envelope tracking supply modulator circuit
CN109004930B (zh) 基于锁相环直接解调频率调制信号的电路系统及控制方法
Legarda Feedforward amplifiers for wideband communication systems
US8958498B1 (en) Method of generating driving signal for driving dual mode supply modulator for power amplifier and device thereof
JP2005039725A (ja) データ変換装置および送信機
JP2003023468A (ja) ディジタル変調器
CN114401052A (zh) 一种5电平rf-pwm的调制方法及调制器

Legal Events

Date Code Title Description
A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20090908

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20090909

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20101207

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20110405