JP7251660B2 - 高周波増幅器 - Google Patents
高周波増幅器 Download PDFInfo
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- JP7251660B2 JP7251660B2 JP2021563497A JP2021563497A JP7251660B2 JP 7251660 B2 JP7251660 B2 JP 7251660B2 JP 2021563497 A JP2021563497 A JP 2021563497A JP 2021563497 A JP2021563497 A JP 2021563497A JP 7251660 B2 JP7251660 B2 JP 7251660B2
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- 239000003990 capacitor Substances 0.000 claims description 42
- 239000010754 BS 2869 Class F Substances 0.000 claims description 10
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- 230000002999 depolarising effect Effects 0.000 claims description 10
- 239000000758 substrate Substances 0.000 claims description 10
- 239000010410 layer Substances 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000003321 amplification Effects 0.000 claims description 3
- 230000001747 exhibiting effect Effects 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 230000001939 inductive effect Effects 0.000 claims description 2
- 239000011229 interlayer Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 24
- 230000003071 parasitic effect Effects 0.000 description 15
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- 239000004065 semiconductor Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 2
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Description
図1は、実施の形態1に係る高周波増幅器を示す回路図である。図2は、実施の形態1に係る高周波増幅器を示す上面図である。高周波増幅器の回路モジュールは多層のガラエポ基板1を用いて構成されている。
L(M1a)=-(i1+i2)/i1×M
L(M1b)=-(i1+i2)/i2×M
L(M1a)=-(1+1/n)×M
L(M1b)=-(1+n)×M
L(L1b)=L(L1a)+L(M1a)=L(L1)―(1/n)×M
L(L2b)=L(L2a)+L(M1b)=L(L2)-n×M
図12は、実施の形態2に係る高周波増幅器を示す回路図である。図13は、実施の形態2に係る高周波増幅器を示す上面図である。高調波整合回路3はワイヤW1を介してトランジスタT1のドレインに接続されている。一方、基本波整合回路MC2は、別途設けたワイヤW2を介してトランジスタT1のドレインに接続されている。ワイヤW2は寄生インダクタL5を有する。基本波の基本波整合回路MC2と高調波整合回路3がトランジスタT1のドレインで分離されている。ワイヤW2はワイヤW1に対して斜めに配置されている。このため、ワイヤ間のカップリングを低減でき、基本波整合回路MC2と高調波整合回路3との干渉が少ない。よって、基本波整合回路MC2と高調波整合回路3を別々に最適化することができ、回路設計が容易となる。
図14は、実施の形態3に係る高周波増幅器を示す回路図である。実施の形態1の第2のキャパシタC2は基本波周波数の3倍と高い周波数に対応している。例えば3GHz帯の増幅器であれば第2のキャパシタC2は9GHzに対応している。このため、第2のキャパシタC2の容量値は1pF以下であり、精度が要求される。実施の形態1では第2のキャパシタC2としてチップコンデンサを用いている。しかし、市販のチップコンデンサの容量値のステップは0.1pF刻みと荒い。また、チップコンデンサを実装するためのパッドは大きく、数分の1pF程度の寄生容量を有する。従って、第2のキャパシタC2の容量値の微調整が困難である。
本実施の形態では、実施形態1の回路構成において、第1のインダクタL1、第1のキャパシタC1、第2のインダクタL2、第2のキャパシタC2の定数を、トランジスタT1の出力端から高調波整合回路3を見込むインピーダンスが2倍波に対してトランジスタT1内の寄生容量Cdsと共振して開放、3倍波に対して短絡となるように設定している。これにより高周波増幅器が逆F級動作をする高調波条件を満たすことができる。
図16は、実施の形態5に係る高周波増幅器を示す回路図である。実施の形態4の構成に加えて、第1のインダクタL1と第1のキャパシタC1との間に、基本波の波長λに対して電気長がλ/4のトランスミッションラインTRL1が接続されている。
Claims (13)
- 入力信号を増幅する増幅素子と、
前記増幅素子の出力端に第1のワイヤを介して接続された高調波整合回路とを備え、
前記高調波整合回路は、前記第1のワイヤに接続された第1のインダクタと、前記第1のインダクタと直列に接続された第1のキャパシタと、前記第1のインダクタと並列に接続された第2のインダクタと、前記第2のインダクタと直列に接続された第2のキャパシタとを有し、
前記第1のインダクタと前記第2のインダクタは、減極性の相互インダクタンスを呈する減極性カップラを形成していることを特徴とする高周波増幅器。 - 前記第1のインダクタと前記第2のインダクタは、互いに逆方向に巻かれて重なり合っていることを特徴とする請求項1に記載の高周波増幅器。
- 前記増幅素子の前記出力端から前記高調波整合回路を見込むインピーダンスが、前記入力信号の基本波に対して開放、2倍波に対して短絡、3倍波に対して開放となり、前記高周波増幅器がF級動作をすることを特徴とする請求項1又は2に記載の高周波増幅器。
- 前記第2のインダクタと前記第2のキャパシタで構成される共振回路のインピーダンスは、前記2倍波以下の周波数に対して容量性、前記3倍波に対して誘導性を示し、
前記第1のインダクタと前記第1のキャパシタで構成される共振回路のインピーダンスは前記基本波に対して誘導性を示すことを特徴とする請求項3に記載の高周波増幅器。 - 前記増幅素子の前記出力端から前記高調波整合回路を見込むインピーダンスが、前記入力信号の2倍波に対して開放、3倍波に対して短絡となり、前記高周波増幅器が逆F級動作をすることを特徴とする請求項1又は2に記載の高周波増幅器。
- 前記第1のインダクタと前記第1のキャパシタの間に接続され、前記入力信号の波長λに対して電気長がλ/4のトランスミッションラインを更に備えることを特徴とする請求項5に記載の高周波増幅器。
- 前記第1のワイヤと前記高調波整合回路の接続点に接続された基本波整合回路を更に備えることを特徴とする請求項1~6の何れか1項に記載の高周波増幅器。
- 前記増幅素子の前記出力端に第2のワイヤにより接続された基本波整合回路を更に備えることを特徴とする請求項1~6の何れか1項に記載の高周波増幅器。
- 前記第2のワイヤは前記第1のワイヤに対して斜めに配置されていることを特徴とする請求項8に記載の高周波増幅器。
- 前記第1のキャパシタ及び第2のキャパシタはチップコンデンサであることを特徴とする請求項1~9の何れか1項に記載の高周波増幅器。
- 前記第2のキャパシタは多層のガラエポ基板と配線で形成された層間容量であることを特徴とする請求項1~9の何れか1項に記載の高周波増幅器。
- 前記第2のキャパシタはオープンスタブであることを特徴とする請求項1~9の何れか1項に記載の高周波増幅器。
- 前記増幅素子はGaN系HEMTチップであり、
前記第1のインダクタ及び第2のインダクタガラエポ基板の配線層から形成されていることを特徴とする請求項1~12の何れか1項に記載の高周波増幅器。
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PCT/JP2019/048325 WO2021117142A1 (ja) | 2019-12-10 | 2019-12-10 | 高周波増幅器 |
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JPWO2021117142A1 JPWO2021117142A1 (ja) | 2021-06-17 |
JPWO2021117142A5 JPWO2021117142A5 (ja) | 2022-04-08 |
JP7251660B2 true JP7251660B2 (ja) | 2023-04-04 |
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US (1) | US20220337204A1 (ja) |
JP (1) | JP7251660B2 (ja) |
KR (1) | KR20220088486A (ja) |
CN (1) | CN114731141A (ja) |
DE (1) | DE112019007952T5 (ja) |
TW (1) | TWI741782B (ja) |
WO (1) | WO2021117142A1 (ja) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008263439A (ja) | 2007-04-12 | 2008-10-30 | Toshiba Corp | F級増幅回路 |
US20160173039A1 (en) | 2014-12-16 | 2016-06-16 | Freescale Semiconductor, Inc. | Amplifiers with a short phase path, packaged rf devices for use therein, and methods of manufacture thereof |
JP5958834B2 (ja) | 2011-06-28 | 2016-08-02 | パナソニックIpマネジメント株式会社 | 高周波電力増幅器 |
US20190296693A1 (en) | 2018-03-20 | 2019-09-26 | Nxp Usa, Inc. | Amplifier device with harmonic termination circuit |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2503917B2 (ja) * | 1993-09-22 | 1996-06-05 | 日本電気株式会社 | 高効率電力増幅器 |
US6577199B2 (en) * | 2000-12-07 | 2003-06-10 | Ericsson, Inc. | Harmonic matching network for a saturated amplifier |
CN2872699Y (zh) * | 2006-02-14 | 2007-02-21 | 沈阳华腾电器设备有限公司 | 负互感滤波器 |
JP2009081605A (ja) * | 2007-09-26 | 2009-04-16 | Univ Of Electro-Communications | 逆f級増幅回路 |
CN108028635B (zh) * | 2015-09-09 | 2021-04-20 | 株式会社村田制作所 | 频率可变lc滤波器、高频前端电路 |
JP2019041310A (ja) * | 2017-08-28 | 2019-03-14 | 株式会社村田製作所 | 半導体装置 |
-
2019
- 2019-12-10 JP JP2021563497A patent/JP7251660B2/ja active Active
- 2019-12-10 US US17/639,556 patent/US20220337204A1/en active Pending
- 2019-12-10 CN CN201980101189.4A patent/CN114731141A/zh active Pending
- 2019-12-10 WO PCT/JP2019/048325 patent/WO2021117142A1/ja active Application Filing
- 2019-12-10 KR KR1020227017783A patent/KR20220088486A/ko not_active Application Discontinuation
- 2019-12-10 DE DE112019007952.2T patent/DE112019007952T5/de not_active Withdrawn
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2020
- 2020-09-10 TW TW109131095A patent/TWI741782B/zh active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008263439A (ja) | 2007-04-12 | 2008-10-30 | Toshiba Corp | F級増幅回路 |
JP5958834B2 (ja) | 2011-06-28 | 2016-08-02 | パナソニックIpマネジメント株式会社 | 高周波電力増幅器 |
US20160173039A1 (en) | 2014-12-16 | 2016-06-16 | Freescale Semiconductor, Inc. | Amplifiers with a short phase path, packaged rf devices for use therein, and methods of manufacture thereof |
US20190296693A1 (en) | 2018-03-20 | 2019-09-26 | Nxp Usa, Inc. | Amplifier device with harmonic termination circuit |
Also Published As
Publication number | Publication date |
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JPWO2021117142A1 (ja) | 2021-06-17 |
KR20220088486A (ko) | 2022-06-27 |
US20220337204A1 (en) | 2022-10-20 |
TW202123605A (zh) | 2021-06-16 |
DE112019007952T5 (de) | 2022-10-27 |
CN114731141A (zh) | 2022-07-08 |
TWI741782B (zh) | 2021-10-01 |
WO2021117142A1 (ja) | 2021-06-17 |
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