For a RF/microwave signal traveling in a transmission line, the characteristic impedance is the ratio of the amplitudes of the voltage and the current in Ohms. Characteristic impedance is determined b [..]

Directivity is a measure of the quality of the directional coupler. Directivity = Coupling-Isolation

The span of frequency over which the component maintains all specified performance values.

Insertion loss is the amount of power (P) lost when transmitted through the component from the input port to the other ports. IL(dB)=10Log(Pin/(Pout)) please see individual components application note [..]

Isolation refers to the ability of a component to prevent a signal from appearing at a port where it is unwanted. For example, in a power combiner, the ability to prevent signals at any input port fro [..]

A measure of power loss due to reflections within a device. Signal Reflections occur when there is a mismatch between the source and load impedances.

The production of unwanted signals from the nonlinear mixing of two or more signals in a passive component. PIM problems may be minimized by careful contact and current path junction design (including [..]

The maximum amount of continuous input power (in watts) a component can safely handle without permanent performance degradation.

A thermoplastic member of the fluoropolymer family of plastics. PTFE is commonly used as a support insulator in RF and microwave coaxial connectors because of its low & stable dielectric constant [..]

The Voltage Standing Wave Ratio is a measure of how well a load is impedance-matched to a source. The value of VSWR is always expressed as a ratio with 1 in the denominator (2:1, 3:1, 10:1, etc.) It i [..]