Contents
What is stub in antenna?
A stub is a short-circuited section of a transmission line connected in parallel to the main transmission line. A stub of appropriate length is placed at some distance from the load such that the impedance seen beyond the stub is equal to the characteristic impedance.
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 meant by 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 the need of stub matching?
Stub matches are widely used to match any complex load to a transmission line. They consist of shorted or opened segments of the line, connected in parallel or in series with the line at a appropriate distances from the load. The single stub match is perhaps the most widely used matching circuit and can match any load.
What is a stub position?
From Wikipedia, the free encyclopedia. A stub is the stock representing the remaining equity in a corporation left over after a major cash or security distribution from a buyout, a spin-out, a demerger or some other form of restructuring removes most of the company’s operations from the parent corporation.
What is single and double stub matching?
20th March 2018 24th May 2019 by editor. Stub tuning is an impedance matching technique, when an open-circuited or short-circuited transmission line is connected to the main transmission line. A stub is usually made as part of circuit which allows the avoidance of lumped elements.
What is a stub value?
Stub stock values typically represent only a small fraction of the price of the parent securities from which they have been created. Their lower prices can reflect the uncertainty that market participants perceive regarding the recapitalized company’s prospects.
Why do you need a stub filter on a PCB?
Wires—either as cabling or PCB traces—connecting components are fundamental to any electronic system. But wires that go to nowhere, called stub filters, can have a useful role as well. In this article, Robert helps you understand and build stub filters, but also explains the dangers of accidentally including a stub filter in your PCB design.
What do you need to know about via stubs?
As a PCB designer, it is important for you to know the effects of via stubs on signal attenuation and data transfer rates. First, let’s start with a few things to know about signal integrity and via stubs. A via stub is the part of a via which is not used for signal transmission.
What does stub stand for in electronics category?
Stub (electronics) Resonant stub tank circuits in vacuum tube backpack UHF transceiver, 1938. 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.
Are there any unintended stubs on a PCB?
\\$\\begingroup\\$There’s also the unintended PCB stubs to care for, e.g. vias with unused sections that act like stubs. See this link: polarinstruments.com/support/si/AP8166.html\\$\\endgroup\\$– Guillermo PrandiJun 28 ’14 at 13:22 Add a comment | Your Answer