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The simulated and measured return loss characteristics are in good agreement.
The (measured) return loss of the filter is better than 20dBB from 1.5 GHz to 1.6 GHz; while insertion loss at 1575 MHz is ∼5.5 dB.
Figure 5 Measured return loss of the antenna.
Across the bandwidth, the measured minimum insertion loss is about 1.7 dB, while the measured return loss is better than 19dBB.
The measured return loss is greater than 15 dB at all operating frequencies.
The measured return loss and radiation patterns are given and the overall performance of the antenna is compared with some of the previously reported compact metamaterial antennas.
Similar(49)
The results showed that the simulated and measured return losses were in good agreement for each antenna.
The proposed antenna has the total size of 10 ∗ 10 ∗ 1 mm which is located at human tissues such as muscle, fat and skin and some of the parameters such as gain, return loss, radiation pattern and VSWR are measured.
The measured return losses were close.
The measured input return loss is kept below −11 dB, and the output return loss is −8 dB, from 3.1 to 10.6 GHz.
The measured antenna return loss (on and off the human body) is shown in Figure 5.
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com