What is stub in transmission line?
In microwave and radio-frequency engineering, a stub or resonant stub is a length of transmission line or waveguide that is connected at one end only. The free end of the stub is either left open-circuit, or short-circuited (as is always the case for waveguides).
What is meant by the term stub matching?
[′stəb ‚mach·iŋ] (electromagnetism) Use of a stub to match a transmission line to an antenna or load; matching depends on the spacing between the two wires of the stub, the position of the shorting bar, and the point at which the transmission line is connected to the stub.
What is stub filter?
A stub filter is the most simple filter you can imagine. It consists of, at least one, piece of coax cable of certain length. The length of the cable is related to the resonance frequency ant thereby also the frequency of the notch.
What is stub in power system?
Stub protection is nothing but a simple Phase over current protection which is used to protect the power system under ring bus or one and half bus configuration when the line isolators are opened.
What is stub in Smith Chart?
Stub tuning is one method that satisfies both of these criteria; stub tuning is simply the process of adding a length of transmission line to the existing length in either series, shunt, open circuit, or short circuit configuration to match the line to the load.
What is a stub antenna?
A short, UHF (ultrahigh frequency), quarter-wavelength antenna usually used for radar beacon transponders, DME (distance-measuring equipment), and IFF (identification friend or foe).
What are stubs in agriculture?
1. stub – a short piece remaining on a trunk or stem where a branch is lost. plant part, plant structure – any part of a plant or fungus.
What is stub in Mockito?
Mockito provides when – then stubbing pattern to stub a mock object’s method invocation. “ mockito stub” The mock API invocation goes into when() which is a static Mockito API method and the value that we want the want the mock to return goes into the then() API.