Microwave Waveguides
Generally, if the frequency of a signal or a particular band of signals is high, the bandwidth utilization is high as the signal provides more space for other signals to…
Types of Transmission Lines
The conventional open-wire transmission lines are not suitable for microwave transmission, as the radiation losses would be high. At Microwave frequencies, the transmission lines employed can be broadly classified into…
Stub Matching
If the load impedance mismatches the source impedance, a method called "Stub Matching" is sometimes used to achieve matching. The process of connecting the sections of open or short circuit…
Losses due to Impedance Mismatch
The transmission line, if not terminated with a matched load, occurs in losses. These losses are many types such as attenuation loss, reflection loss, transmission loss, return loss, insertion loss,…
Efficiency of Transmission Lines
The efficiency of transmission lines is defined as the ratio of the output power to the input power. Voltage Regulation Voltage regulation is defined as the change in the magnitude…
Voltage Standing Wave Ratio (VSWR)
The standing wave is formed when the incident wave gets reflected. The standing wave which is formed, contains some voltage. The magnitude of standing waves can be measured in terms…
Microwave Transmission Line
A transmission line is a connector which transmits energy from one point to another. The study of transmission line theory is helpful in the effective usage of power and equipment. There are…
Subscriber Loop Design
Basic Design Considerations We speak of the telephone subscriber as the user of the subset. As we mention in Section 1.3, telephone subscribers are connected via a subscriber loop to…
Operation Of The Telephone Subset
A telephone subset consists of an earpiece, which we may call the receiver; the mouthpiece, which we may call the transmitter; and some control circuitry in the telephone cradle-stand. Figure…
Transmission Aspects Of Voice Telephony
Chapter Objective The goal of this chapter is to provide the reader with a firm foundation of the analog voice channel. Obviously, from the term, we are dealing with the…
