Now there is a problem with this type of configuration as the impedance matching is in the direction of resistor R1. This causes the mismatch of impedance towards the parallel resistor R2 and as a result, the mismatch will become larger as the attenuation increases. This can damage the circui...
A Variable Capacitor is one whose capacitance may be intentionally and repeatedly changed mechanically. This type of capacitor is utilized to set the frequency of resonance in LC circuits, for instance, to adjust the radio for impedance matching in antenna tuner devices. Variable Capacitors Application...
2. Waveguide Tapers : Smoothly varying cross sectional dimensions. It provides gradual impedance matching between waveguides of different sizes. 3. Post/Screw : It acts as a shunt capacitive reactance in the waveguide if it is partially inserted. If fully inserted with connection to waveguide wall...
In a nutshell, it refers to the orientation of the electric field concerning the Earth’s surface. It can be vertical, horizontal, or circular. Ensuring that the transmitting and receiving antennas have matching polarizations can significantly improve the quality of the received signal. Antenna’s ...
As Antenna resides between cable/waveguide and the medium air, the main function of antenna is to match impedance of the medium with the cable/waveguide impedance. Hence antenna is impedance transforming device. The second and most important function of antenna is to radiate the energy in the de...
In this antenna, the fraction of incident energy can be radiated from the entry of the waveguide and the rest of the energy will be reflected back from the same entry because of the open entry, the poor impedance matching will exist in between the space & waveguide. Also, at the edges ...
Impedance mismatch and the loss of the device are factors that cause insertion loss. It is therefore crucial to minimize the insertion loss in order to enhance the signal’s transmission efficiency. Doing this determines a lot of things in the RF multiplexer design. ...
What are air capacitors? Air capacitors are capacitors which use air as their dielectric. The simplest air capacitors are made of two conductive plates separated by an air gap. Air capacitors can…
Used in the measurement of the length of the short-circuited section of the Tx.line in order to offer the required amount of inductive reactance of capacitance Used for the purposes of impedance matching Employed to know the value of VSWR amongst others. ...
When the i/p impedance is less, it is excellent for matching sources through a less i/p impedance because of the maximum power theorem; however, it draws additional current, involving high power utilization from the source of the signal. ...