Miniaturized ceramic-based wideband planar spiral antenna
A flat helical and helical antenna technology is applied in the fields of measurement and control communication, satellite navigation, and microwave antennas.
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[0030] The design frequencies of the miniaturized ceramic-based broadband planar helical antenna in this embodiment are L band (center frequency 1.45 GHz), C band (center frequency 4.35 GHz), and Ku band (center frequency 13 GHz).
[0031] The miniaturized ceramic-based broadband planar helical antenna of this embodiment, see figure 1 with figure 2 , Including a single-sided copper-clad microwave ceramic substrate 2, two radiating helical antenna arms 1 are provided on the copper-clad layer of the microwave ceramic substrate 2, and a connecting arm 21 is provided in the center of the copper-clad layer of the microwave ceramic substrate 2 , The two ends of the connecting arm 21 are respectively connected to the inner end points of the two radiating spiral antenna arms 1 (see image 3 ), a first PMI foam support layer 31 is provided under the microwave ceramic substrate 2, and a first periodic frequency selection structure 41 is provided under the first PMI foam support layer 31 (s...
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