What is the relationship between patch spacing and quarter wave length in an antenna array?
Best insight from top research papers
The relationship between patch spacing and quarter wavelength in an antenna array is crucial for determining the antenna's performance characteristics. Different spacing configurations impact parameters like gain, directivity, bandwidth, and efficiency . For instance, in a 1×2 rectangular patch antenna array, specific spacings of 0.7λ, 0.8λ, 0.9λ, and λ were analyzed, showing variations in radiation pattern, gain, directivity, and return loss based on the type of power divider used. Additionally, in a circularly polarized quarter-circle truncated patch array, the spacing and arrangement of patches significantly influenced impedance bandwidth and axial ratio bandwidth. Optimizing patch spacing and utilizing quarter wave transformer feeds can enhance antenna performance, leading to improved characteristics such as gain, directivity, and bandwidth.
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| Papers (5) | Insight |
|---|---|
Open access•Proceedings Article 15 Dec 2011 | The paper demonstrates that with a large spacing of 1.57λ (1.57 times the free-space wavelength), an antenna array can achieve -13.8 dB side lobe level and similar aperture efficiency compared to a conventional array. |
| The paper does not directly address the relationship between patch spacing and quarter wavelength in an antenna array. | |
01 Feb 2016 5 Citations | The patch spacing in the antenna array is designed at 0.7λ, 0.8λ, 0.9λ, and λ for both the 1×2 patch antenna array with a quarter-wavelength transformer and a Gysel power divider. |
| The paper focuses on a circularly polarized tightly coupled quarter-circle truncated patch array, not directly addressing the relationship between patch spacing and quarter wavelength in an antenna array. | |
| The design incorporates resonant \((\uplambda/2)\) spacing in a 4-element patch array with a Quarter wave transformer feed, enhancing gain, directivity, and bandwidth up to 116.6 MHz for wireless applications. |
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