Filter adjustment method, filter and electronic equipment

[0042] Example one

[0043] The present invention provides a filter, figure 1 This is a schematic diagram of the composition structure of a filter provided by an embodiment of the present invention, such as figure 1 As shown, the filter includes:

[0044] The filter includes: a metal microstrip patch 10, a dielectric plate 20, a metal ground plate 30, and a coplanar waveguide structure 40; wherein the metal microstrip patch 10 adopts a microstrip line structure, and the metal ground plate 30 Adopt a defective structure;

[0045] The metal ground plate 30 is provided with a coplanar waveguide structure 40; the metal microstrip patch 10 and the metal ground plate 30 are respectively located on the upper surface and the lower surface of the dielectric plate 20;

[0046] The metal microstrip patch 10 is coupled with the metal ground plate 30 through a vertical transition.

[0047] In the above solution, preferably, the metal microstrip patch 10 is coupled with the metal ground plate 30 throug

[0060] Example two

[0061] Based on the above-mentioned filter structure, the present invention also provides a filter, Figure 7 It is a schematic diagram of the composition structure of another filter provided by an embodiment of the present invention, such as Figure 7 As shown, the filter further includes:

[0062] The first adjuster 50 is used to adjust the size of the passband and the position of the center frequency of the filter by changing the size of the coplanar waveguide structure 40 and the metal microstrip patch 10.

[0063] Preferably, the filter further includes:

[0064] The second adjuster 60 is used for adjusting the size of the pass band and the position of the center frequency point of the filter by changing the size of the dielectric constant of the dielectric plate 20.

[0065] Preferably, the filter further includes:

[0066] The processor 70 is configured to form two crossed resonance frequency points through the coupling and frequency shift relationship between

[0075] Example three

[0076] based on figure 1 For the structure of the filter shown, the present invention also discloses a filter adjustment method, which includes:

[0077] Through the coupling and frequency shift relationship between the relative positions of the first split resonant ring 41 and the second split resonant ring 42, two crossed resonance frequency points are formed to achieve a wide notch.

[0078] Specifically, the first split resonant ring 41 and the second split resonant ring 42 both generate a resonance frequency. However, due to the distance between the two, the resonance frequency is shifted and the frequency band is widened, thereby forming a wide Notch.

[0079] When the distance L7 between the first split resonant ring 41 and the second split resonant ring 42 changes from large to small, the width of the trap gradually becomes wider. That is, the smaller the value of L7, the larger the frequency range that the UWB filter can filter out.

[0080] In the above s