What is a good gain for an antenna?

On an open and flat highway, a high gain antenna will be better… 3 dB, 6 dB, etc. If your desired coverage area is hilly then a ¼ wave omnidirectional antenna will be better. The other type of gain is directional and is important for base stations.

What is antenna detuning?

It means that an antenna with a physical form factor designed for operation in vacuum (or air) will be detuned to a lower frequency when encased into a dielectric insulator or brought close to human tissues for instance (the well-known hand-effect detuning).

How do you measure antenna range?

Near-field range (NF) Planar near-field measurements are conducted by scanning a small probe antenna over a planar surface. These measurements are then transformed to the far-field by use of a Fourier transform, or more specifically by applying a method known as stationary phase to the Laplace transform .

How does VNA measure antenna gain?

Most recent answer

1. Take two identical antenna.
2. Select farely obstruction free site and erect both antenna at a convenient distance of 10 lamda or more (d).
3. One antenna use as a transmitter Say Ant1.
4. Connect VNA at receiving antenna Ant2 and measure received signal strength (Pr)

How is antenna efficiency calculated?

Antenna Efficiency is the ratio of power radiated (Prad) by the antenna to the power supplied (Ps) to the antenna. The efficiency of an antenna is usually measured in an anechoic chamber where an antenna is fed with some power and the strength of the radiated electromagnetic field in the surrounding space is measured.

Can you touch an AM detuning skirt wire?

When a high power AM transmitting antenna is very near a cell tower the detuning skirt can absorb a significant amount of the radio stations signal and may present an RF burn hazard to anyone who touches it. This potential hazard only exists while the AM radio station is transmitting.

How is antenna field measured?

Planar near-field measurements are conducted by scanning a small probe antenna over a planar surface. These measurements are then transformed to the far-field by use of a Fourier transform, or more specifically by applying a method known as stationary phase to the Laplace transform .