A Method for Measuring the Maximum Measurable Gain of a Passive Intermodulation Chamber
This paper presents an approximate method that allows the calculation of the maximum measurable gain (MMG) in an anechoic chamber. This method is realized by using a low passive intermodulation (PIM) medium-gain directional antenna. By reducing the distance between the antenna and the wall of the ch...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-03-01
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| Series: | Electronics |
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| Online Access: | https://www.mdpi.com/2079-9292/10/7/770 |
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| author | Zhanghua Cai Yantao Zhou Lie Liu Francesco de Paulis Yihong Qi Antonio Orlandi |
| author_facet | Zhanghua Cai Yantao Zhou Lie Liu Francesco de Paulis Yihong Qi Antonio Orlandi |
| author_sort | Zhanghua Cai |
| collection | DOAJ |
| description | This paper presents an approximate method that allows the calculation of the maximum measurable gain (MMG) in an anechoic chamber. This method is realized by using a low passive intermodulation (PIM) medium-gain directional antenna. By reducing the distance between the antenna and the wall of the chamber to reduce path loss, the purpose of replacing a high-gain antenna with a medium-gain antenna is achieved. The specific relationship between distance and equivalent gain is given in this paper. The measurement interval is determined by the 3 dB beamwidth of the measurement antenna to scan the whole chamber. A set of corresponding data for the residual PIM level and the MMG of the chamber can be obtained by the method of measurement outlined herein. The feasibility of this method was verified by measurements in two PIM measurement chambers. |
| first_indexed | 2024-03-10T12:56:41Z |
| format | Article |
| id | doaj.art-ff76750a3c364d799909d46a9a9f80fa |
| institution | Directory Open Access Journal |
| issn | 2079-9292 |
| language | English |
| last_indexed | 2024-03-10T12:56:41Z |
| publishDate | 2021-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronics |
| spelling | doaj.art-ff76750a3c364d799909d46a9a9f80fa2023-11-21T11:54:37ZengMDPI AGElectronics2079-92922021-03-0110777010.3390/electronics10070770A Method for Measuring the Maximum Measurable Gain of a Passive Intermodulation ChamberZhanghua Cai0Yantao Zhou1Lie Liu2Francesco de Paulis3Yihong Qi4Antonio Orlandi5Department of Electrical and Information Engineering, Hunan University, Changsha 410082, ChinaDepartment of Electrical and Information Engineering, Hunan University, Changsha 410082, ChinaGeneral Test Systems, Shenzhen 518102, ChinaUAq EMC Laboratory, Department of Industrial and Information Engineering and Economics, University of L’Aquila, 64100 L’Aquila, ItalyPeng Cheng Laboratory, Shenzhen 518066, ChinaUAq EMC Laboratory, Department of Industrial and Information Engineering and Economics, University of L’Aquila, 64100 L’Aquila, ItalyThis paper presents an approximate method that allows the calculation of the maximum measurable gain (MMG) in an anechoic chamber. This method is realized by using a low passive intermodulation (PIM) medium-gain directional antenna. By reducing the distance between the antenna and the wall of the chamber to reduce path loss, the purpose of replacing a high-gain antenna with a medium-gain antenna is achieved. The specific relationship between distance and equivalent gain is given in this paper. The measurement interval is determined by the 3 dB beamwidth of the measurement antenna to scan the whole chamber. A set of corresponding data for the residual PIM level and the MMG of the chamber can be obtained by the method of measurement outlined herein. The feasibility of this method was verified by measurements in two PIM measurement chambers.https://www.mdpi.com/2079-9292/10/7/770anechoic chamberantenna measurementpassive intermodulation measurement |
| spellingShingle | Zhanghua Cai Yantao Zhou Lie Liu Francesco de Paulis Yihong Qi Antonio Orlandi A Method for Measuring the Maximum Measurable Gain of a Passive Intermodulation Chamber Electronics anechoic chamber antenna measurement passive intermodulation measurement |
| title | A Method for Measuring the Maximum Measurable Gain of a Passive Intermodulation Chamber |
| title_full | A Method for Measuring the Maximum Measurable Gain of a Passive Intermodulation Chamber |
| title_fullStr | A Method for Measuring the Maximum Measurable Gain of a Passive Intermodulation Chamber |
| title_full_unstemmed | A Method for Measuring the Maximum Measurable Gain of a Passive Intermodulation Chamber |
| title_short | A Method for Measuring the Maximum Measurable Gain of a Passive Intermodulation Chamber |
| title_sort | method for measuring the maximum measurable gain of a passive intermodulation chamber |
| topic | anechoic chamber antenna measurement passive intermodulation measurement |
| url | https://www.mdpi.com/2079-9292/10/7/770 |
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