Antennas and RF Accessories

Antennas and RF Accessories
In radio, an antenna is the interface between radio waves propagating through space and electric currents moving in metal conductors, used with a transmitter or receiver. In transmission, a radio transmitter supplies an electric current to the antenna's terminals, and the antenna radiates the energy from the current as electromagnetic waves (radio waves). In reception, an antenna intercepts some of the power of an electromagnetic wave in order to produce an electric current at its terminals, that is applied to a receiver to be amplified. Antennas are essential components of all radio equipment, and are used in radio broadcasting, broadcast television, two-way radio, communications receivers, radar, cell phones, satellite communications and other devices.
 
An antenna is an array of conductors (elements), electrically connected to the receiver or transmitter. During transmission, the oscillating current applied to the antenna by a transmitter creates an oscillating electric field and magnetic field around the antenna elements. These time-varying fields radiate energy away from the antenna into space as a moving transverse electromagnetic field wave. Conversely, during reception, the oscillating electric and magnetic fields of an incoming radio wave exert force on the electrons in the antenna elements, causing them to move back and forth, creating oscillating currents in the antenna.
 
Antennas can be designed to transmit and receive radio waves in all horizontal directions equally (omnidirectional antennas), or preferentially in a particular direction (directional or high gain antennas). An antenna may include parasitic elements, parabolic reflectors or horns, which serve to direct the radio waves into a beam or other desired radiation pattern.
Show:
Sort By:

TekBox TBST-200/100/100 Shielded tent

The TekBox TBST-200/100/100 is a shielded tent, designed to suppress interference from ambient ..

5.100,00€

TekBox TBST86/49/45/1-B Shielded tent without AC filter

The TekBox TBST-86/49/45/1-B is a shielded tent without main AC filter, designed to suppre..

1.045,00€

TekBox TBST86/49/45/2-B Shielded tent

The TekBox TBST-86/49/45/2-B is a shielded tent, designed to suppress interference from am..

1.350,00€

TekBox TBTC0 Open TEM Cell - Extra Small

TekBox TBTC0 Open TEM Cell - Extra Small, recommended for DUTs up to 114 x 42 x 15 mm and frequencie..

539,00€

TekBox TBTC1 Open TEM Cell - Small

TekBox TBTC1 Open TEM Cell, rectangular area under the septum: 19 x 13 x 5 cmRadiated emission tests..

719,00€

TekBox TBTC2 Open TEM Cell - Medium

TekBox TBTC2 Open TEM Cell, rectangular area under the septum: 23 x 28 x 10 cmRadiated emission test..

959,00€

TekBox TBTC3 Open TEM Cell - Big

TekBox TBTC3 Open TEM Cell, rectangular area under the septum: 36 x 48 x 15 cmRadiated emission test..

1.199,00€

TekBox TBWA2/20dB Wideband RF Amplifier

TekBox TBWA2/20dB wideband RF amplifiers are versatile building blocks that can easily be integrated..

229,00€

TekBox TBWA2/40dB Wideband RF Amplifier

TekBox TBWA2/40dB wideband RF amplifiers are versatile building blocks that can easily be integrated..

289,00€