Select a GaAs MMIC low-pass or high-pass filter using the required passband and stopband response. Review insertion loss, return loss or VSWR, package dimensions and the mounting conditions specified for the selected model. Confirm power and environmental ratings from the datasheet.
| Model Number | Description | Frequency Range MHz | Insertion Loss dB max. | Attenuation dB | VSWR | Dimensions | |
| HD34421 | High Pass Filter | 2000-18000 | 1.70 | 20.00 | 1.53:1 | 1.6 x 0.75 x 0.1 | Download |
| HD34423 | 21.50 | Download | |||||
| HD34424 | 4000-27000 | 20.00 | 1.09:1 | Download | |||
| HD34425 | 6000-18000 | 2.00 | 1.12:1 | Download | |||
| HD34426 | 1.40 | 1.22:1 | Download | ||||
| HD34427 | 18000-40000 | 3.20 | 1.07:1 | 1.16 x 0.96 x 0.1 | Download | ||
| HD34435 | Low Pass Filter | DC-10000 | 1.90 | 21.00 | 1.5:1 | 1.6 x 0.75 x 0.1 | Download |
| HD34436 | DC-13000 | 1.30 | 34.00 | 1.14:1 | Download | ||
| HD34437 | DC-4000 | 2.10 | 20.00 | 1.17:1 | Download | ||
| HD34438 | DC-6000 | 1.80 | 1.09:1 | Download | |||
| HD34439 | DC-8000 | 1.70 | 1.08:1 | Download |
Electrical, environmental and mechanical requirements
Provide the required frequency response, insertion loss or attenuation, impedance and RF power level. RFComp can review these requirements against available model specifications.
Specify operating and storage temperatures, vibration, sealing and other environmental requirements. Confirm each rating in the selected model’s datasheet; do not assume every model supports extreme conditions.
Provide connector type, package dimensions, mounting constraints and any space or weight limits. Confirm the mechanical drawing and interface requirements before ordering.
Start with your passband and stopband frequency limits. Define the maximum passband insertion loss and the attenuation required at each unwanted frequency.
Check return loss or VSWR, impedance, RF power rating, package dimensions and mounting conditions. Compare specifications using the same test conditions and review the selected model’s datasheet.
A low-pass filter passes a specified lower-frequency band and attenuates higher frequencies. A high-pass filter does the reverse within its rated operating range. Neither has an ideal abrupt transition.
Review passband insertion loss, rejection at unwanted frequencies, return loss or VSWR, power rating and mounting requirements. Use the selected model’s datasheet for limits and test conditions.
Send passband and stopband frequency limits, required attenuation, maximum insertion loss, impedance, power level, package constraints, temperature range and quantity.
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