JP7455878B2 - ロバストなam-pmひずみ自己抑制技術を備えた超小型のマルチバンド送信器 - Google Patents
ロバストなam-pmひずみ自己抑制技術を備えた超小型のマルチバンド送信器 Download PDFInfo
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Description
本願は、2016年3月11日付けで出願された米国特許出願第15/068179号に基づく優先権を主張するものである。なお、基礎となる米国出願の内容は、その全文を参照により援用される。
Claims (21)
- 無線周波数信号を増幅する装置であって、
出力受動回路網へ結合された複数の差動増幅器セルであり、前記複数の差動増幅器セルのうちの少なくとも1つの差動増幅器セルは、カスコード・トランジスタの第1対及びトランジスタの第2対を有し、前記トランジスタの第2対は、前記カスコード・トランジスタの第1対と比べてゲート幅が小さい、前記複数の差動増幅器セルと、
前記少なくとも1つの差動増幅器セルの前記カスコード・トランジスタの第1対のうちの少なくとも一対のカスコード・トランジスタをオン又はオフするよう構成されるデジタル回路と、
前記複数の差動増幅器セルのためのドライバ信号を生成するドライバ段と
を有し、
前記デジタル回路は、前記少なくとも1つの差動増幅器セルのパワーオフフェーズ中に前記少なくとも一対のカスコード・トランジスタが前記カスコード・トランジスタの閾値電圧を下回る電圧でバイアスをかけられる場合に、前記少なくとも一対のカスコード・トランジスタに対応する前記トランジスタの第2対をオンして、前記少なくとも一対のカスコード・トランジスタの各カスコード・トランジスタのドレイン-ソース間の寄生キャパシタンスを接地させるよう更に構成される、装置。 - 前記ドライバ段は、1つ以上のドライバ段セルを有する、
請求項1に記載の装置。 - 前記ドライバ段セルは、1つ以上の増幅器を含む、
請求項2に記載の装置。 - 前記ドライバ段セルは、1つ以上のコンパレータを含む、
請求項2に記載の装置。 - 前記デジタル回路は、前記トランジスタのゲートにバイアス信号を供給することによって前記差動増幅器セルを制御するよう構成される、
請求項1に記載の装置。 - 前記デジタル回路は、前記カスコード・トランジスタのゲートに電圧バイアスを供給することによって前記差動増幅器セルを制御するよう構成される、
請求項1に記載の装置。 - 前記出力受動回路網は、少なくとも1つの変圧器を有する、
請求項1に記載の装置。 - 前記出力受動回路網は、少なくとも1つの容量ユニットを有する、
請求項1に記載の装置。 - 前記変圧器と前記複数の差動増幅器セルとは、互いに並列に結合される、
請求項7に記載の装置。 - 前記トランジスタの第2対へ結合され、前記少なくとも1つの差動増幅器セルの出力電力レベルに応じて前記デジタル回路により前記トランジスタの第2対をオン又はオフするよう構成されるスイッチ又はインバータの組を更に有する、
請求項1に記載の装置。 - 前記少なくとも一対のカスコード・トランジスタは、前記デジタル回路により前記閾値電圧を上回るバイアスをかけられる場合にオンする、
請求項1に記載の装置。 - 前記少なくとも一対のカスコード・トランジスタは、前記デジタル回路により前記閾値電圧を下回る前記電圧でバイアスをかけられる場合に導通する、
請求項1に記載の装置。 - 前記デジタル回路は、前記差動増幅器セルのうちの選択されたサブセットの前記カスコード・トランジスタの第1対をオン又はオフするよう構成される、
請求項1に記載の装置。 - 前記複数の差動増幅器セルは、電力増幅器回路の部分である、
請求項1に記載の装置。 - 無線周波数信号を増幅するための、モバイルデバイス用の電力増幅器であって、
出力受動回路網へ結合された複数の差動増幅器セルであり、前記複数の差動増幅器セルのうちの少なくとも1つの差動増幅器セルは、カスコード・トランジスタの第1対及びトランジスタの第2対を有し、前記トランジスタの第2対は、前記カスコード・トランジスタの第1対と比べてゲート幅が小さい、前記複数の差動増幅器セルと、
前記少なくとも1つの差動増幅器セルの前記カスコード・トランジスタの第1対のうちの少なくとも一対のカスコード・トランジスタをオン又はオフするよう構成されるデジタル回路と、
前記複数の差動増幅器セルのためのドライバ信号を生成するドライバ段と
を有し、
前記デジタル回路は、前記少なくとも1つの差動増幅器セルのパワーオフフェーズ中に前記少なくとも一対のカスコード・トランジスタが前記カスコード・トランジスタの閾値電圧を下回る電圧でバイアスをかけられる場合に、前記少なくとも一対のカスコード・トランジスタに対応する前記トランジスタの第2対をオンして、前記少なくとも一対のカスコード・トランジスタの各カスコード・トランジスタのドレイン-ソース間の寄生キャパシタンスを接地させるよう更に構成される、電力増幅器。 - 出力受動回路網へ結合された複数の差動増幅器セルを有する、無線周波数信号を増幅する装置の作動方法であって、前記複数の差動増幅器セルのうちの少なくとも1つの差動増幅器セルが、カスコード・トランジスタの第1対及びトランジスタの第2対を有し、前記トランジスタの第2対が、前記カスコード・トランジスタの第1対と比べてゲート幅が小さい、前記作動方法において、
前記トランジスタのゲートへバイアス信号を供給することと、
前記カスコード・トランジスタのゲートへ電圧バイアスを供給することと
を有し、
前記少なくとも1つの差動増幅器セルのパワーオフフェーズ中に前記カスコード・トランジスタの第1対が前記カスコード・トランジスタの閾値電圧を下回る電圧でバイアスをかけられる場合に、前記トランジスタの第2対は、前記カスコード・トランジスタの第1対の各カスコード・トランジスタのドレイン-ソース間の寄生キャパシタンスを接地させるようオンされる、作動方法。 - 前記少なくとも1つの差動増幅器セルの出力電力レベルに応じて前記トランジスタの第2対をオン又はオフにすることを更に有する、
請求項16に記載の作動方法。 - 前記複数の差動増幅器セルのうちの選択されたサブセットの前記カスコード・トランジスタの第1対をオン又はオフすることを更に有する、
請求項16に記載の作動方法。 - 前記カスコード・トランジスタの第1対は、前記閾値電圧を上回るバイアスをかけられる場合にオンする、
請求項16に記載の作動方法。 - 前記カスコード・トランジスタの第1対は、前記閾値電圧を下回る前記電圧でバイアスをかけられる場合に導通する、
請求項16に記載の作動方法。 - 無線周波数信号を増幅する装置を有するユーザ設備又はモバイル通信デバイスであって、
前記装置は、
出力受動回路網へ結合された複数の差動増幅器セルであり、前記複数の差動増幅器セルのうちの少なくとも1つの差動増幅器セルは、カスコード・トランジスタの第1対及びトランジスタの第2対を有し、前記トランジスタの第2対は、前記カスコード・トランジスタの第1対と比べてゲート幅が小さい、前記複数の差動増幅器セルと、
前記少なくとも1つの差動増幅器セルの前記カスコード・トランジスタの第1対のうちの少なくとも一対のカスコード・トランジスタをオン又はオフするよう構成されるデジタル回路と、
前記複数の差動増幅器セルのためのドライバ信号を生成するドライバ段と
を有し、
前記デジタル回路は、前記少なくとも1つの差動増幅器セルのパワーオフフェーズ中に前記少なくとも一対のカスコード・トランジスタが前記カスコード・トランジスタの閾値電圧を下回る電圧でバイアスをかけられる場合に、前記少なくとも一対のカスコード・トランジスタに対応する前記トランジスタの第2対をオンして、前記少なくとも一対のカスコード・トランジスタの各カスコード・トランジスタのドレイン-ソース間の寄生キャパシタンスを接地させるよう更に構成される、
ユーザ設備又はモバイル通信デバイス。
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DE112017001276T5 (de) | 2018-11-29 |
CN109728785A (zh) | 2019-05-07 |
US9887673B2 (en) | 2018-02-06 |
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US20200021251A1 (en) | 2020-01-16 |
CN115347874A (zh) | 2022-11-15 |
CN108781059A (zh) | 2018-11-09 |
JP6682584B2 (ja) | 2020-04-15 |
US10381986B2 (en) | 2019-08-13 |
JP2022058882A (ja) | 2022-04-12 |
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WO2017155617A1 (en) | 2017-09-14 |
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US20210126589A1 (en) | 2021-04-29 |
US11923809B2 (en) | 2024-03-05 |
US11424722B2 (en) | 2022-08-23 |
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JP2019024202A (ja) | 2019-02-14 |
US20180278216A1 (en) | 2018-09-27 |
CN109728785B (zh) | 2023-07-25 |
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