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A two-port component used to provide frequency selectivity in satellite and mobile communications, radar, electronic warfare, metrology, and remote-...



= Encyclopedia Article; = Research Update
Figure 1.Common microwave filter attenuation (insertion loss) versus frequency responses. (a) Low-pass filter. (b) High-pass filter. (c) Band-pass filter. (d) Band-stop filter. Attenuation or insertion loss increases down the vertical axis.
From Encyclopedia article 'Microwave filter'
Figure 2.Third-order (four-section) microwave band-pass filter. (a) Layout of parallel coupled stripline filter. (b) Calculated frequency response of filter, with center frequency of 2 GHz and 0.5-dB equal-ripple passband.
From Encyclopedia article 'Microwave filter'