JP2021520080A - マイクロ波増幅器 - Google Patents
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- H03F3/20—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers
- H03F3/24—Power amplifiers, e.g. Class B amplifiers, Class C amplifiers of transmitter output stages
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- H03F3/60—Amplifiers in which coupling networks have distributed constants, e.g. with waveguide resonators
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- A61B2018/00571—Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body for achieving a particular surgical effect
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Abstract
Description
装置は、内視鏡、胃内視鏡、または腹腔鏡などの外科スコーピングデバイス114を備える。外科スコーピングデバイス114は、多数の入力ポートと、器具コード120が伸び出る出力ポートとを有する本体116を備える。器具コード120は、複数の管腔を囲む外側被覆を備える。複数の管腔は、本体116から器具コード120の遠位端へ、様々なものを搬送する。複数の管腔のうちの1つは、器具(作業)チャネルである。器具(作業)チャネルの全長に沿って、可撓性シャフト112を挿入可能である。他の管腔は、例えば遠位端に照明を提供するために、または遠位端から画像を収集するために、光放射を伝達するチャネルを含み得る。本体116は、遠位端を見るための接眼レンズ122を含み得る。遠位端に照明を提供するために、光源124(例えばLEDなど)が、照明入力ポート126により本体116に接続され得る。
負荷ネットワーク300は、トランジスタ302の出力に接続され、トランジスタ302は、基本周波数f1でトランジスタ302へ送達されるマイクロ波信号を増幅するように構成される。負荷ネットワーク300は、第2次高調波周波数の1/2波長伝送線路を備え、これは、直列に接続された第3次高調波周波数の1/4波長伝送線路304(λ3/4伝送線路)、及びλ2/2−λ3/4伝送線路310から成る。λ3/4伝送線路304の長さには、ドレイン出力接続に至るトランジスタのパッケージ内部への伝送線路が含まれ、その特性は不明であり得る。
Claims (15)
- 基本周波数の電磁(EM)信号を増幅するマイクロ波増幅器であって、
増幅マイクロ波信号をその出力で提供するように構成されたトランジスタと、
前記増幅マイクロ波信号の波形を整形するために、前記出力に接続された負荷ネットワークと、を備え、
前記負荷ネットワークは、
前記基本周波数でインピーダンス整合を提供するように調整可能な基本波整合ネットワークと、
前記出力と前記基本波整合ネットワークとの間に配置された、前記増幅マイクロ波信号の第2次高調波周波数の1/2波長伝送線路と、
第3次高調波周波数で開回路状態を提供するために前記1/2波長伝送線路に配置された、前記増幅マイクロ波信号の前記第3次高調波周波数の1/4波長スタブ及び5/4波長スタブと、
前記第2次高調波周波数で短絡回路状態を提供するために前記1/2波長伝送線路に配置された、前記第2次高調波周波数の1/4波長スタブ及び前記基本周波数の1/4波長スタブと、を備える、前記マイクロ波増幅器。 - 前記第3次高調波周波数の前記1/4波長スタブ及び前記5/4波長スタブは、前記1/2波長伝送線路に沿って、前記第3次高調波周波数の1/4波長に等しい距離で、互いに対向するように配置される、請求項1に記載のマイクロ波増幅器。
- 前記第2次高調波周波数の前記1/4波長スタブ及び前記基本周波数の前記1/4波長スタブは、前記1/2波長伝送線路の出力において、互いに対向するように配置される、請求項1または請求項2に記載のマイクロ波増幅器。
- 前記基本周波数の前記1/4波長スタブを介して、バイアス電圧が前記トランジスタに印加される、先行請求項のいずれかに記載のマイクロ波増幅器。
- 前記バイアス電圧入力と、前記基本周波数の前記1/4波長スタブとの間に配置されたコンデンサをさらに備える、請求項4に記載のマイクロ波増幅器。
- 前記第2次高調波周波数の前記1/2波長伝送線路は、前記第3次高調波周波数の1/4波長伝送線路を備え、前記第3次高調波周波数の前記1/4波長スタブ及び前記5/4波長スタブは、前記第3次高調波周波数の前記1/4波長伝送線路の出力において、互いに対向するように配置される、先行請求項のいずれか1項に記載のマイクロ波増幅器。
- 前記トランジスタは、GaN系HEMTである、先行請求項のいずれか1項に記載のマイクロ波増幅器。
- 高電力マイクロ波電磁(EM)放射を生成するマイクロ波信号発生器であって、
第1の電力のマイクロ波EM放射を生成するように構成されたマイクロ波源と、
請求項1〜7のいずれか1項に記載のマイクロ波増幅器であって、前記マイクロ波EM放射を、前記第1の電力から、前記第1の電力より高い第2の電力に増幅するように構成された前記マイクロ波増幅器と、を備える、前記マイクロ波信号発生器。 - 直流(DC)エネルギーを供給する直流(DC)電源をさらに備える、請求項8に記載のマイクロ波信号発生器。
- 電気外科手術を行うための電気外科装置であって、前記装置は、
第1の電力のマイクロ波電磁(EM)放射を生成するように構成されたマイクロ波源と、
請求項1〜7のいずれか1項に記載のマイクロ波増幅器であって、前記マイクロ波EM放射を、前記第1の電力から、前記第1の電力より高い第2の電力に増幅するように構成された前記マイクロ波増幅器と、
生体組織を治療するために、前記第2の電力の前記マイクロ波EM放射をその遠位端から送達するように構成されたプローブと、
前記マイクロ波発生器から前記マイクロ波増幅器及び前記プローブに、マイクロ波EMエネルギーを搬送する給電構造と、を備え、
前記プローブは、前記給電構造の前記遠位端に配置される、前記電気外科装置。 - 前記マイクロ波信号発生器に直流(DC)エネルギーを供給する直流(DC)電源であって、前記直流(DC)電源は前記プローブに一体化される、前記直流(DC)電源をさらに備える、請求項10に記載の電気外科装置。
- 前記マイクロ波増幅器は、前記プローブに搭載される、請求項10または11のいずれか1項に記載の電気外科装置。
- 前記マイクロ波信号発生器は、前記プローブに搭載される、請求項10〜12のいずれか1項に記載の電気外科装置。
- 前記装置はさらに、本体及び器具コードを有するスコーピングデバイスを備え、
前記器具コードを通して器具チャネルが延在し、
前記器具チャネルを通して前記プローブを挿入可能である、請求項10〜13のいずれか1項に記載の電気外科装置。 - 前記装置はさらに、可撓性シャフトを介して前記プローブに接続されたハンドルを備える、請求項10〜14のいずれか1項に記載の電気外科装置。
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GB1806940.1 | 2018-04-27 | ||
GB1806940.1A GB2573288A (en) | 2018-04-27 | 2018-04-27 | Microwave amplifier |
PCT/EP2019/060720 WO2019207098A1 (en) | 2018-04-27 | 2019-04-26 | Microwave amplifier |
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US (1) | US11446083B2 (ja) |
EP (1) | EP3785366A1 (ja) |
JP (1) | JP7454241B2 (ja) |
KR (1) | KR20210003712A (ja) |
CN (1) | CN111602336B (ja) |
AU (1) | AU2019260548A1 (ja) |
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CN108574465A (zh) * | 2018-06-27 | 2018-09-25 | 成都嘉纳海威科技有限责任公司 | 一种基于左右手传输线的高效率f类堆叠功率放大器 |
GB2589604A (en) * | 2019-12-04 | 2021-06-09 | Creo Medical Ltd | Pulse generating circuit, and electrosurgical generator incorporating the same |
GB2589605A (en) * | 2019-12-04 | 2021-06-09 | Creo Medical Ltd | Pule generating circuit, and electrosurgical generator incorporating the same |
TWI740700B (zh) * | 2020-11-03 | 2021-09-21 | 長庚大學 | 氮化鎵轉阻放大器 |
CN113114132B (zh) * | 2021-03-12 | 2023-02-14 | 华南理工大学 | 一种适用于5g基站的功率放大器及通信设备 |
CN113395043B (zh) * | 2021-05-25 | 2024-03-29 | 杭州电子科技大学 | 一种基于精确谐波控制的高效率双频功率放大器及其设计方法 |
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- 2019-04-26 US US16/959,063 patent/US11446083B2/en active Active
- 2019-04-26 JP JP2020537688A patent/JP7454241B2/ja active Active
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- 2019-04-26 AU AU2019260548A patent/AU2019260548A1/en not_active Abandoned
- 2019-04-26 KR KR1020207018686A patent/KR20210003712A/ko not_active Application Discontinuation
- 2019-04-26 BR BR112020013468-6A patent/BR112020013468A2/pt unknown
- 2019-04-26 SG SG11202006170SA patent/SG11202006170SA/en unknown
- 2019-04-26 CN CN201980007261.7A patent/CN111602336B/zh active Active
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KR20210003712A (ko) | 2021-01-12 |
CA3087318A1 (en) | 2019-10-31 |
WO2019207098A1 (en) | 2019-10-31 |
EP3785366A1 (en) | 2021-03-03 |
BR112020013468A2 (pt) | 2020-12-01 |
SG11202006170SA (en) | 2020-07-29 |
CN111602336A (zh) | 2020-08-28 |
IL275820A (en) | 2020-08-31 |
GB2573288A (en) | 2019-11-06 |
GB201806940D0 (en) | 2018-06-13 |
US20200397506A1 (en) | 2020-12-24 |
CN111602336B (zh) | 2023-04-21 |
AU2019260548A1 (en) | 2020-07-16 |
US11446083B2 (en) | 2022-09-20 |
JP7454241B2 (ja) | 2024-03-22 |
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