Wide-angle scanning phased array antenna with large element spacing and wide-angle scanning based on electromagnetic bandgap structure
An electromagnetic bandgap structure and phased array antenna technology, which is applied in the field of radar technology, can solve problems such as damaged working bandwidth and large unit size, and achieve the effects of easy processing and manufacturing, good broadband, and reduced manufacturing costs
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[0024] The large element spacing wide-angle scanning phased array antenna based on the electromagnetic bandgap structure of this embodiment adopts a 13×5 planar array form, and the designed array works at 7-13 GHz. Such as figure 2 The array units shown are arranged in a triangular grid, and the size of the array element is 14.6mm×13mm, which is larger than half the wavelength of the high-frequency end operating frequency. Below is a metal floor 1 with a rectangular connection groove 6, the groove is 3.5mm deep and 6mm wide, and there is no medium filling inside the groove. The middle dielectric plate 4 has a thickness of 0.5 mm and a dielectric constant of 2.2, and is bonded to the metal floor 1 , with a microstrip feeder 5 printed on its upper surface. One end of the coaxial core 7 is connected to the SMA connector, and the other end passes through the metal floor 1 and the middle dielectric board 4 to connect to the feeding point of the microstrip feeder 5, and the other e...
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