What is RF Bandpass Filter Learning kit?

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Free Design Special Learning Kit

Temwell Helical Band Pass Filter Learning

In Tx and Rx circuit designs usually need a filter to remove unwanted frequency from a signal while preserving desired frequency. There are 4 basic types of filters, one is Bandpass Filter allows all frequencies between two frequencies to pass while rejecting all others.

The Bandpass Filter is obtained by cascading a lowpass and highpass filter. It is a second order filter since it contains two reactive elements. The order of the filter depends on the number of cascading circuits using in the circuit. It will optimize the sensitivity of the Tx and Rx devices.

**You can easy learn the following through Temwell Helical Bandpass Filter learning kit.
** Network analyzer using and measurement (e.g. calibration)
**RF filters waveform specs S11, S22 (e.g. center frequency, bandwidth, attenuation, second harmonic)
** How the RF filters waveform changes by tuning screws on the filters (e.g. frequency shift)

Our Helical Bandpass Filter supports from 45 MHz to 2.6 GHz.

The learning kit including the most widely used are 7H series each filter is 12.5 mm height and 7.6 mm wide, and 5W series each filter is 8.6 mm height and 5.6 mm wide. Both series including 50 ohm and 75 ohm, power sustain up to 5 watts.

The optional frequencies sort by applications: Two-Way Radio, Ham Radio, Broadband and NB-IoT.

Frequencies for instance: 60 MHz, 70 MHz, 80 MHz, 90 MHz, 128 MHz, 140 MHz, 146 MHz, 157 MHz, 160 MHz, 172 MHz, 180 MHz, 223.5 MHz, 375 MHz, 380 MHz, 418 MHz, 435 MHz, 450 MHz, 455 MHz, 460 MHz, 474 MHz, 480 MHz, 500 MHz, 530 MHz, 575 MHz, 625MHz, 650 MHz, 666 MHz, 725 MHz, 700 MHz, 808 MHz, 850 MHz, 868 MHz, 883 MHz, 881.5 MHz, 900 MHz, 902.5 MHz, 915 MHz, 925 MHz, 947.5 MHz, 950 MHz, 1270 MHz, 1282.5 MHz, 1489 MHz, 1575 MHz, 1950 MHz, 2400 MHz, 2450 MHz etc.

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