Frequency Multipliers

Radio-Frequency (RF) frequency multipliers are non-linear components that generate output signals at integer multiples of the input signal frequency. They are commonly used in communication and radar systems to achieve higher frequencies from lower-frequency sources. In the process, they may introduce harmonic distortion, phase noise, and conversion loss.

This module provides various numerical models of RF frequency multipliers.

class X4(seed=None)

Bases: RFBlock

A radio-frequency block that multiplies the input signal’s frequency by 4.

Parameters:

seed (int | None) – Seed with which to initialize the block’s random state.

realize(bandwidth, oversampling_factor, carrier_frequency)

Return the current state of the radio-frequency block.

Parameters:

• bandwidth (float) – Bandwith of the proecessed signals in Hz.

• oversampling_factor (int) – Oversampling factor of the modeling.

• carrier_frequency (float) – Target carrier frequency of the modeled radio front-end in Hz.

Return type:

RFBlockRealization

Returns:

Current state of the radio-frequency block.

property i: RFBlockPort[X4]

Input port of the X4 block.

property num_input_ports: int

Number of physical ports feeding into this radio-frequency block.

If the returned number is negative, the block can accept an arbitrary number of input ports.

property num_output_ports: int

Number of physical ports emerging from this radio-frequency block.

property o: RFBlockPort[X4]

Output port of the X4 block.