Analysis and Design of Harmonic Rejection Low Noise Amplifier with an Embedded Notch Filter
This paper presents the analysis and design of the harmonic rejection (HR) low-noise amplifier (LNA) with the fully passive source degeneration notch filter. The proposed HR LNA provides the rejection for the strong harmonics (<inline-formula> <math display="inline"> <semant...
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MDPI AG
2020-03-01
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| Series: | Electronics |
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| Online Access: | https://www.mdpi.com/2079-9292/9/4/596 |
| _version_ | 1797571796501790720 |
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| author | Raymond Gyaang Dong-Ho Lee Jusung Kim |
| author_facet | Raymond Gyaang Dong-Ho Lee Jusung Kim |
| author_sort | Raymond Gyaang |
| collection | DOAJ |
| description | This paper presents the analysis and design of the harmonic rejection (HR) low-noise amplifier (LNA) with the fully passive source degeneration notch filter. The proposed HR LNA provides the rejection for the strong harmonics (<inline-formula> <math display="inline"> <semantics> <msub> <mn>3</mn> <mrow> <mi>r</mi> <mi>d</mi> </mrow> </msub> </semantics> </math> </inline-formula>) of the local oscillator (LO) frequencies, where the HR mixer does not provide sufficient HR performance. The proposed <inline-formula> <math display="inline"> <semantics> <msub> <mn>3</mn> <mrow> <mi>r</mi> <mi>d</mi> </mrow> </msub> </semantics> </math> </inline-formula> harmonic notch filter modulates the source degeneration factor and the impedance matching performance thereafter. This effect further helps the blocking of the harmonic signal. The proposed LNA provides 11 dB gain at the fundamental frequency (2.1 GHz) while rejecting the 3rd harmonic component by 37 dBc. Compared to the conventional LNA, the 3rd harmonic notch performance is improved by 23 dB. Additionally, the LNA achieves a minimum noise figure of 3.1 dB, third order input intercept point (<inline-formula> <math display="inline"> <semantics> <mrow> <mi>I</mi> <mi>I</mi> <msub> <mi>P</mi> <mn>3</mn> </msub> </mrow> </semantics> </math> </inline-formula>) of 0.5 dBm, input reflection (S<inline-formula> <math display="inline"> <semantics> <msub> <mrow></mrow> <mn>11</mn> </msub> </semantics> </math> </inline-formula>) below −10 dB from 1.8 GHz–2.3 GHz operational frequency range, and consumed 19 mW of power from a 1.2 V supply. |
| first_indexed | 2024-03-10T20:46:38Z |
| format | Article |
| id | doaj.art-2b106885b5874ba49665e18462ffe0d3 |
| institution | Directory Open Access Journal |
| issn | 2079-9292 |
| language | English |
| last_indexed | 2024-03-10T20:46:38Z |
| publishDate | 2020-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronics |
| spelling | doaj.art-2b106885b5874ba49665e18462ffe0d32023-11-19T20:16:24ZengMDPI AGElectronics2079-92922020-03-019459610.3390/electronics9040596Analysis and Design of Harmonic Rejection Low Noise Amplifier with an Embedded Notch FilterRaymond Gyaang0Dong-Ho Lee1Jusung Kim2Department of Mobile Convergence Engineering, Hanbat National University, Daejeon 34158, KoreaDepartment of Mobile Convergence Engineering, Hanbat National University, Daejeon 34158, KoreaDepartment of Electronics and Control Engineering, Hanbat National University, Daejeon 34158, KoreaThis paper presents the analysis and design of the harmonic rejection (HR) low-noise amplifier (LNA) with the fully passive source degeneration notch filter. The proposed HR LNA provides the rejection for the strong harmonics (<inline-formula> <math display="inline"> <semantics> <msub> <mn>3</mn> <mrow> <mi>r</mi> <mi>d</mi> </mrow> </msub> </semantics> </math> </inline-formula>) of the local oscillator (LO) frequencies, where the HR mixer does not provide sufficient HR performance. The proposed <inline-formula> <math display="inline"> <semantics> <msub> <mn>3</mn> <mrow> <mi>r</mi> <mi>d</mi> </mrow> </msub> </semantics> </math> </inline-formula> harmonic notch filter modulates the source degeneration factor and the impedance matching performance thereafter. This effect further helps the blocking of the harmonic signal. The proposed LNA provides 11 dB gain at the fundamental frequency (2.1 GHz) while rejecting the 3rd harmonic component by 37 dBc. Compared to the conventional LNA, the 3rd harmonic notch performance is improved by 23 dB. Additionally, the LNA achieves a minimum noise figure of 3.1 dB, third order input intercept point (<inline-formula> <math display="inline"> <semantics> <mrow> <mi>I</mi> <mi>I</mi> <msub> <mi>P</mi> <mn>3</mn> </msub> </mrow> </semantics> </math> </inline-formula>) of 0.5 dBm, input reflection (S<inline-formula> <math display="inline"> <semantics> <msub> <mrow></mrow> <mn>11</mn> </msub> </semantics> </math> </inline-formula>) below −10 dB from 1.8 GHz–2.3 GHz operational frequency range, and consumed 19 mW of power from a 1.2 V supply.https://www.mdpi.com/2079-9292/9/4/596down-conversion mixerharmonic-rejectionlocal-oscillatornotch-filterreceiversource-degeneration LNA |
| spellingShingle | Raymond Gyaang Dong-Ho Lee Jusung Kim Analysis and Design of Harmonic Rejection Low Noise Amplifier with an Embedded Notch Filter Electronics down-conversion mixer harmonic-rejection local-oscillator notch-filter receiver source-degeneration LNA |
| title | Analysis and Design of Harmonic Rejection Low Noise Amplifier with an Embedded Notch Filter |
| title_full | Analysis and Design of Harmonic Rejection Low Noise Amplifier with an Embedded Notch Filter |
| title_fullStr | Analysis and Design of Harmonic Rejection Low Noise Amplifier with an Embedded Notch Filter |
| title_full_unstemmed | Analysis and Design of Harmonic Rejection Low Noise Amplifier with an Embedded Notch Filter |
| title_short | Analysis and Design of Harmonic Rejection Low Noise Amplifier with an Embedded Notch Filter |
| title_sort | analysis and design of harmonic rejection low noise amplifier with an embedded notch filter |
| topic | down-conversion mixer harmonic-rejection local-oscillator notch-filter receiver source-degeneration LNA |
| url | https://www.mdpi.com/2079-9292/9/4/596 |
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