400 - 470Mhz 433Mhz Low-pass Filter LPF SWR <1.22
Low-pass filter such that signals below the cutoff frequency, while the signal above the cutoff frequency are attenuated. Commonly used in the lectromagnetic signal higher harmonics suppression, or on the rear end of the mixer to filter out high frequency noise, frequency selection to play the role. The filter can significantly attenuate signals above 470M, harmonic suppression capacity of about 50dbc.
Several low-pass filter, compared under the same conditions of order, elliptic filter compared to Butterworth and Chebyshev filters and other types of filters, to get narrower bandwidth and smaller transition stopband fluctuations, on this point, elliptic filter is optimal. This is a 7-order elliptic low-pass filter, the filter steepness better than other properties of the filter.
This product is symmetrical, P1 and P2 are can be used as input or output.
PCB Dimensions (without sma connectors ): 36mm × 16mm
The test results: as in the picture below.