Design and Analysis of a Continuously Tunable Low Noise Amplifier for Software Defined Radio
This paper presents the design and analysis of a continuously tunable low noise amplifier (LNA) with an operating frequency from 2.2 GHz to 2.8 GHz. Continuous tuning is achieved through a radio frequency impedance transformer network in the input matching stage. The proposed circuit consists of fou...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-03-01
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| Series: | Sensors |
| Subjects: | |
| Online Access: | http://www.mdpi.com/1424-8220/19/6/1273 |
| _version_ | 1828371601634099200 |
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| author | Aayush Aneja Xue Jun Li |
| author_facet | Aayush Aneja Xue Jun Li |
| author_sort | Aayush Aneja |
| collection | DOAJ |
| description | This paper presents the design and analysis of a continuously tunable low noise amplifier (LNA) with an operating frequency from 2.2 GHz to 2.8 GHz. Continuous tuning is achieved through a radio frequency impedance transformer network in the input matching stage. The proposed circuit consists of four stages, namely transformer stage, tuning stage, phase shifter and gain stage. Frequency tuning is controlled by varying output current through bias voltage of tuning stage. The circuit includes an active phase shifter in the feedback path of amplifier to shift the phase of the amplified signal. Phase shift is required to further achieve tunability through transformer. The LNA achieves a maximum simulated gain of 18 dB. The LNA attains a perfect impedance match across the tuning range with stable operation. In addition, it achieves a minimum noise figure of 1.4 dB. |
| first_indexed | 2024-04-14T06:51:43Z |
| format | Article |
| id | doaj.art-bccf2a97af7240dda7cc860d97a9a7d0 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-14T06:51:43Z |
| publishDate | 2019-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-bccf2a97af7240dda7cc860d97a9a7d02022-12-22T02:07:01ZengMDPI AGSensors1424-82202019-03-01196127310.3390/s19061273s19061273Design and Analysis of a Continuously Tunable Low Noise Amplifier for Software Defined RadioAayush Aneja0Xue Jun Li1Department of Electrical and Electronic Engineering, Auckland University of Technology, Auckland 1010, New ZealandDepartment of Electrical and Electronic Engineering, Auckland University of Technology, Auckland 1010, New ZealandThis paper presents the design and analysis of a continuously tunable low noise amplifier (LNA) with an operating frequency from 2.2 GHz to 2.8 GHz. Continuous tuning is achieved through a radio frequency impedance transformer network in the input matching stage. The proposed circuit consists of four stages, namely transformer stage, tuning stage, phase shifter and gain stage. Frequency tuning is controlled by varying output current through bias voltage of tuning stage. The circuit includes an active phase shifter in the feedback path of amplifier to shift the phase of the amplified signal. Phase shift is required to further achieve tunability through transformer. The LNA achieves a maximum simulated gain of 18 dB. The LNA attains a perfect impedance match across the tuning range with stable operation. In addition, it achieves a minimum noise figure of 1.4 dB.http://www.mdpi.com/1424-8220/19/6/1273green radiosoftware defined radiolow noise amplifiertransformer networktuning transistorphase shifter |
| spellingShingle | Aayush Aneja Xue Jun Li Design and Analysis of a Continuously Tunable Low Noise Amplifier for Software Defined Radio Sensors green radio software defined radio low noise amplifier transformer network tuning transistor phase shifter |
| title | Design and Analysis of a Continuously Tunable Low Noise Amplifier for Software Defined Radio |
| title_full | Design and Analysis of a Continuously Tunable Low Noise Amplifier for Software Defined Radio |
| title_fullStr | Design and Analysis of a Continuously Tunable Low Noise Amplifier for Software Defined Radio |
| title_full_unstemmed | Design and Analysis of a Continuously Tunable Low Noise Amplifier for Software Defined Radio |
| title_short | Design and Analysis of a Continuously Tunable Low Noise Amplifier for Software Defined Radio |
| title_sort | design and analysis of a continuously tunable low noise amplifier for software defined radio |
| topic | green radio software defined radio low noise amplifier transformer network tuning transistor phase shifter |
| url | http://www.mdpi.com/1424-8220/19/6/1273 |
| work_keys_str_mv | AT aayushaneja designandanalysisofacontinuouslytunablelownoiseamplifierforsoftwaredefinedradio AT xuejunli designandanalysisofacontinuouslytunablelownoiseamplifierforsoftwaredefinedradio |