A band pass filter (10) mounted on a base plate (20) includes a loop-step resonator (12), an input portion (100), and an output portion (150). The input portion is electronically connected to the loop-step resonator for inputting electromagnetic signals thereto. The output portion is electronically connected to the loop-step resonator for outputting electromagnetic signals therefrom.

 
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< Filter element and method for manufacturing the same

> Fractal and space-filling transmission lines, resonators, filters and passive network elements

> Optical device and manufacturing method thereof
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