Consider the characteristics of resistance is the most effective way to study signal transmission along the transmission line when the signal itself to see what. To simplify the discussion purposes, assume that laptop battery transmission line for the microwave transmission band (microstrip) type, and signal transmission lines spread along the transmission line when the entire cross-section of the line.
The transmission line to join the range of 1 V step signal. Step 1 V is a signal of the batteries, access by the front end, connected in the signal path between the lines and return. Connected to the inspiron battery in the moment, the signal voltage of electricity will be the speed of light in the medium of the road, speed is usually about six inches / ns (signal why the road so quickly, but not nearly the speed of electronic dissemination of about 1 cm / s, this is another topic , Not further described here). Of course, here the signal still has a conventional definition, the definition signal for the signal lines and access roads to return to the voltage difference, always by measuring the transmission line with the approach of any of the signal to return to the voltage difference between the access road to get.
Signal transmission lines along the direction to six inches / ns the forward speed of transmission. In the process of signal transmission will encounter any kind of situation? » In the beginning of the 10 ps time intervals Inspiron 6000 battery , signal transmission lines along the road direction of the 0.06 inches the distance. The assumption that time locked in this moment, to consider the situation of transmission lines. This section of road in the distance, the signal transmission for this section of transmission line and the corresponding approaches the signal to return to a stable channel established between the rate of 1 V to the constant signal. This means that this section of the road in the transmission line and the corresponding return to the path has been the accumulation of additional positive charge and the additional negative charge to create the stable voltage. It is precisely these differences in charge between the two conductors to establish and maintain a stable 1 V voltage signal, and the conductor of the voltage stability between the two conductors on the signal has been established between a capacitor.
Transmission lines at this moment before the waves behind the signal transmission line is not clear signal to be transmitted over Inspiron 700m battery , thus remain with the return signal pathway between the voltage to zero. In the next 10 ps time intervals, signal transmission lines along the road will be a certain distance, continue to spread the signal will result in another 0.06 inches for the length of the transmission line with the corresponding signal to return to establish a pathway between the 1 V Signal voltage. To achieve this, the need for the signal line into a certain amount of positive charge, as well as the return signal pathway into an equal number of negative charge. Signal transmission lines along the dissemination of 0.06 inches each in length, there will be more positive charge into the signal line, there will be more negative charge into the return signal pathway. Every 10 ps time interval, there will be another section of transmission line was charging to 1 V, will also signal transmission lines along the forward direction to continue to spread.
These charges come from » The answer is from the signal source, that is, we used to provide step-signal transmission line connecting in front of the Inspiron 5100 battery . With the signal transmission lines of communication, the signal for transmission through the transmission line charge to ensure that the process of signal transmission lines and went back to signal path between the establishment and maintenance from 1 V voltage. Every 10 ps time interval, signal transmission lines in the dissemination of certain distance from the power supply system and learn a certain amount of charge δ Q. Battery for a period of time interval δ t in the field to provide a certain amount of charge δ Q, formed a constant on the current signal. Is the current signal from the battery into the line, while the same size of the negative current will flow through the return signal path.
Access road running through a negative signal to return to current signal into line with the current size is exactly the same Inspiron 8200 battery. Moreover, in the position before the wave signal, AC current flows through the line by the signal pathway and signal a return to the capacitor, completed a signal loop.