rod antenna
Rod antennas, as the name suggests, consist of a rod whose length depends on the wavelength of the reception frequency. They belong to the group of wire antennas. Flexible rod antennas are whip antennas. In former times such antennas were used as car antennas, at the moment they are found in CB radio.
In terms of equivalent circuit, rod antennas can be thought of as an oscillating circuit whose capacitor has been opened up so that one capacitor electrode is at the tip of the antenna, the other at the base of the antenna, and the rod forms the inductance.
Rod antennas can be used as car antennas for FM broadcasting, i.e. for the frequency range between 87 MHz and 108 MHz; also for DVB-T, the terrestrial digital TV, with the VHF frequencies between 174 MHz and 230 MHz, as well as with the UHF frequencies between 470 MHz and 862 MHz, and also for the GPS system with its carrier frequency of 1.57542 GHz. Rod antennas and whip antennas are connected to the receiver or the transmitter via an unbalanced antenna cable, i.e. via a coaxial cable.