Coaxial filter including bent high impedance segments and low impedance segments with bypass grooves

A filter, comprising:

• a low-pass filter structure, wherein the low-pass filter structure comprises high impedance segments and low impedance segments connected to each other, two adjacent high impedance segments of the high impedance segments are connected through a low impedance segment of the low impedance segments, two adjacent low impedance segments of the low impedance segments are connected through a high impedance segment of the high impedance segments,
• wherein at least one high impedance segment of the high impedance segments is bent to form a bent high resistance segment, and the bent high resistance segment comprises a first rod segment and a second rod segment that are connected to each other and disposed at an included angle,
• wherein each of the low impedance segments is provided with a bypass groove, a high resistance connection segment is disposed in the bypass groove, one end of the high resistance connection segment is connected to a bottom of the bypass groove, and an other end of the high resistance connection segment is connected to a high impedance segment of the high impedance segments;
• wherein the low-pass filter structure further comprises a first connection segment and a second connection segment, and the high impedance segments and the low impedance segments are disposed between the first connection segment and the second connection segment;
• and
• wherein the filter further comprises a connection rod, wherein the second connection segment is provided with a connection groove, and the connection groove abuts against a periphery wall of the connection rod.