The performance of switched multibeam antennas for cellular radio systems is investigated when the transmit amplifier is of a multicarrier (MCPA) type. The MCPA nonlinearity generates intermodulation distortion in the transmitted signal that is spatially filtered by the array radiation pattern. Hence, the intermodulation distortion becomes direction-dependent, and the direction of the generated...

Phased array antennas are expected to be effective for use in advanced wireless communications for mobile radio communication, wireless LAN, and satellite communication [1]. Recently, the application of photonics technology to microwave array antennas has been studied [2-5]. An optically controlled phased array antenna is very well-suited for fiber-optic microwave or millimeter-wave links. Opti...

Ð In this paper a new channel sounding concept for double-directional and time-delay resolved channel measurements is proposed. It is based on the RUSK ATM vector channel sounder with a uniform linear array at the receiver. Using a switched multibeam antenna instead of an omni-directional antenna at the transmitter site the measurement device became a MIMO system. The sounder has been employed ...

The effects of using an multicarrier amplifier (MCPA) in the transmit chain of a cellular FDMA system utilizing switched multibeam base-station antennas is investigated. By combining several carriers prior to amplification, the signal envelope will be time varying and the MCPA will introduce non-linear distortion of the amplified waveforms. It is shown how the main beam direction and frequency ...

This letter presents a wide-angle scanning multibeam planar inverted-E antenna (PIEA) array for vehicle-to-everything communication. The compact four-element PIEA is designed with 0.3&#x03BB;o spacing, which achieves 90$^{\circ}$ when 135<tex-math phase shift applied obtained using 4 &#x00D7; Butle...