Contactless Method to Estimate Antenna Efficiency in a Reverberation Chamber
Measuring the efficiency of electrically small antennas and integrated antennas is challenging, since for electrically small antennas, the probe may significantly affect the results and for integrated antennas, establishing a connection with the integrated antenna is in many cases not possible. Ther...
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| Veröffentlicht in: | IEEE transactions on antennas and propagation 2023-05, Vol.71 (5), p.1-1 |
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| container_title | IEEE transactions on antennas and propagation |
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| creator | Galesloot, Esme Hubrechsen, Anouk Bronckers, Laurens A. |
| description | Measuring the efficiency of electrically small antennas and integrated antennas is challenging, since for electrically small antennas, the probe may significantly affect the results and for integrated antennas, establishing a connection with the integrated antenna is in many cases not possible. Therefore, a contactless method to estimate the efficiency of electrically small antennas and integrated antennas is necessary. This paper proposes a novel method to estimate antenna efficiency contactlessly using a reverberation chamber: the contactless efficiency method. In the contactless efficiency method, we combine the two-antenna method with the contactless characterization method, to estimate the S -parameters contactlessly. To validate the results, the contactless efficiency method measurements are compared to the measurements of the widely-used two-antenna method and for both methods an uncertainty analysis is performed. Results show a good agreement in the 95% confidence interval between the contactless efficiency method and the existing connectorized method for both the total antenna efficiency and the radiation antenna efficiency. The uncertainty of the contactless efficiency method with a 95% confidence level is below 6% for the whole 0.55 GHz to 1.05 GHz frequency band. |
| doi_str_mv | 10.1109/TAP.2023.3253216 |
| format | Article |
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Therefore, a contactless method to estimate the efficiency of electrically small antennas and integrated antennas is necessary. This paper proposes a novel method to estimate antenna efficiency contactlessly using a reverberation chamber: the contactless efficiency method. In the contactless efficiency method, we combine the two-antenna method with the contactless characterization method, to estimate the S -parameters contactlessly. To validate the results, the contactless efficiency method measurements are compared to the measurements of the widely-used two-antenna method and for both methods an uncertainty analysis is performed. Results show a good agreement in the 95% confidence interval between the contactless efficiency method and the existing connectorized method for both the total antenna efficiency and the radiation antenna efficiency. 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Therefore, a contactless method to estimate the efficiency of electrically small antennas and integrated antennas is necessary. This paper proposes a novel method to estimate antenna efficiency contactlessly using a reverberation chamber: the contactless efficiency method. In the contactless efficiency method, we combine the two-antenna method with the contactless characterization method, to estimate the S -parameters contactlessly. To validate the results, the contactless efficiency method measurements are compared to the measurements of the widely-used two-antenna method and for both methods an uncertainty analysis is performed. Results show a good agreement in the 95% confidence interval between the contactless efficiency method and the existing connectorized method for both the total antenna efficiency and the radiation antenna efficiency. The uncertainty of the contactless efficiency method with a 95% confidence level is below 6% for the whole 0.55 GHz to 1.05 GHz frequency band.</description><subject>Antenna efficiency</subject><subject>Antennas</subject><subject>Confidence intervals</subject><subject>contactless characterization method</subject><subject>contactless efficiency method</subject><subject>Efficiency</subject><subject>Frequencies</subject><subject>reverberation chamber</subject><subject>Reverberation chambers</subject><subject>Statistical analysis</subject><subject>Uncertainty analysis</subject><subject>wireless testing</subject><issn>0018-926X</issn><issn>1558-2221</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNpNkE1LAzEQhoMoWKt3Dx4CnrfmY5PsHstSq1BRpIK3MJudpVvabE1Sof_eLe3B0_DC884wDyH3nE04Z-XTcvoxEUzIiRRKCq4vyIgrVWRCCH5JRozxIiuF_r4mNzGuh5gXeT4ii6r3CVzaYIz0DdOqb2jq6SymbgsJ6dQn9B7orG0716F3B9p5CvQTfzHUGCB1vafVCrZDuCVXLWwi3p3nmHw9z5bVS7Z4n79W00XmpMxTxplT2EDbMM6NhlKbXLRouECnJZbO5KouDAAoMJC7tlFO1DUoZWpuBIAck8fT3l3of_YYk133--CHk1YUrCxMqbkcKHaiXOhjDNjaXRieCgfLmT06s4Mze3Rmz86GysOp0iHiP5xpLbSQfxEwaCk</recordid><startdate>20230501</startdate><enddate>20230501</enddate><creator>Galesloot, Esme</creator><creator>Hubrechsen, Anouk</creator><creator>Bronckers, Laurens A.</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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Therefore, a contactless method to estimate the efficiency of electrically small antennas and integrated antennas is necessary. This paper proposes a novel method to estimate antenna efficiency contactlessly using a reverberation chamber: the contactless efficiency method. In the contactless efficiency method, we combine the two-antenna method with the contactless characterization method, to estimate the S -parameters contactlessly. To validate the results, the contactless efficiency method measurements are compared to the measurements of the widely-used two-antenna method and for both methods an uncertainty analysis is performed. Results show a good agreement in the 95% confidence interval between the contactless efficiency method and the existing connectorized method for both the total antenna efficiency and the radiation antenna efficiency. 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| subjects | Antenna efficiency Antennas Confidence intervals contactless characterization method contactless efficiency method Efficiency Frequencies reverberation chamber Reverberation chambers Statistical analysis Uncertainty analysis wireless testing |
| title | Contactless Method to Estimate Antenna Efficiency in a Reverberation Chamber |
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