Resistance-loaded ultra-wideband dual-polarized four-ridged horn antenna
A four-ridge horn and ultra-broadband technology, applied in antennas, waveguide horns, antenna supports/mounting devices, etc., can solve the problems of poor phase center stability, large size, affecting accuracy and test efficiency, and achieve stable phase Center, good matching characteristics, the effect of improving accuracy and testing efficiency
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[0029] The specific embodiments and effects of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0030] refer to figure 2 , image 3 , Figure 4 and Figure 5 , this example includes a spine 1, a fixed flange 2, a circular waveguide 3, a base 4, two coaxial probes 5 and 6, where:
[0031] The ridge 1 is set to four, that is, the first ridge 11, the second ridge 12, the third ridge 13, and the fourth ridge 14. These four ridges are equally spaced along the inner side of the circular waveguide 3. Installed around the circumference to form the bell face. The bottom of these four ridges is provided with a reflection cavity 15 to filter out the excited high-order mode in the waveguide, expand the working bandwidth of the antenna, and improve the matching characteristics; the top of each ridge is fixed with a vertically downward connecting rod 7 .
[0032] The circular waveguide 3 is installed on the base 4, and t...
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