ZIISOR

Standing wave ratio, also known as VSWR and SWR, is short for Voltage Standing Wave Ratio in English. It refers to the ratio of standing wave belly voltage to trough voltage amplitude, also known as standing wave coefficient and standing wave ratio. It is used to indicate whether the antenna and the radio transmitter match.

Release time: 06-04

Antenna gain is the ratio of the power density of the signal produced by the actual antenna at the same point in space as the ideal radiating element, under the condition of equal input power. It quantitatively describes the extent to which an antenna concentrates the input power.

Release time: 05-31

The wooden antenna is an end-fired antenna in which an active vibrator (generally a folded vibrator), a passive reflector and a number of passive directors are arranged in parallel.

Release time: 05-31

In 1888, when the 29-year-old Popov learned that the famous German physicist Hertz discovered the electromagnetic wave, the young scientist who had decided to promote the electric light said to his friends: "I used my life to install the electric light, for the vast For Russia, it only illuminates a small corner: If I can direct magnetic waves, then I can fly across the world!" So he immersed himself in research and launched a new goal...

Release time: 05-31