What is an Inverted L Antenna?

The inverted L antenna itself has a low impedance value "because it basically adds a horizontal vertical short monopole antenna at the end of the monopole antenna, and the input impedance of the antenna is almost equal to the impedance of the short monopole antenna plus close to the ground The horizontal line reactance "Inverted L antennas made of thin wires have the disadvantage that the frequency band is relatively narrow, typically only one hundredth or lower of the center frequency. In order to widen the bandwidth, we generally use thin metal wires instead of thin wires."

Inverted L-shaped antenna

Right!

The inverted L antenna itself has a low impedance value "because it basically adds a horizontal vertical short monopole antenna at the end of the monopole antenna, and the input impedance of the antenna is almost equal to the impedance of the short monopole antenna plus close to the ground The horizontal line reactance "Inverted L antennas made of thin wires have the disadvantage that the frequency band is relatively narrow, typically only one hundredth or lower of the center frequency. In order to widen the bandwidth, we generally use thin metal wires instead of thin wires."

It consists of a short monopole as a vertical unit and a horizontal unit attached to the end of the monopole. "Because the height of the inverted L antenna vertical unit is limited to a small part of a wavelength, it is basically a low-profile structure." Units can be deformed into various shapes, the total length is usually a quarter of the working wavelength "