Abstract:
A tunable antenna module for a mobile device includes an antenna, a frequency-division circuit and one or more impedance-tuning circuits. The frequency-division circuit is coupled to a radiator of the antenna for forming one or more signal paths for one or more of component frequencies of a radio-frequency signal of the antenna. One or more the impedance-tuning circuits are coupled to the frequency-division circuit for tuning an impedance of the antenna at one or more of the component frequencies of the radio-frequency signal.
Abstract:
A tunable antenna module for a mobile device includes an antenna, a frequency-division circuit and one or more impedance-tuning circuits. The frequency-division circuit is coupled to a radiator of the antenna for forming one or more signal paths for one or more of component frequencies of a radio-frequency signal of the antenna. One or more the impedance-tuning circuits are coupled to the frequency-division circuit for tuning an impedance of the antenna at one or more of the component frequencies of the radio-frequency signal.
Abstract:
Examples of a tunable antenna and various implementations thereof are described. The tunable antenna may include a radiator and one or more varactors. The radiator may include at least one feeding port and at least one shorting port. Each of the one or more varactors may be coupled to the radiator and configured to operate in either an isolation state or a connection state when the tunable antenna operates in a radio-frequency (RF) frequency range.