Integrated, digitally controlled, 64-element SiGe on multilayer organic X-band phased-array receiver antenna for snow measurements

A lightweight, 64-element, organic phased array with integrated transmit-receive SiGe circuitry in the X band

“…The first set is used to distribute the RF signal to and from the 8 rows containing the TR circuitry, and the second set, to distribute the RF signal to and from the 8 patch antennas of a given row of components. The array elements were designed according to the procedure presented in [8], to provide a constant gain across the broadside azimuthal range between ±25°.…”

“…The aforementioned single-chip SiGe BiCMOS developments have allowed the recent implementation of lightweight, receive-only phased arrays in the X and Ku frequency bands [6]- [8]. In these implementations, a PS and an LNA within a single SiGe IC are used to drive individual [6] or several [7], [8] radiating elements in the array. The true benefit of these designs relies on the reduction of the NF of the system as it is significantly improved by placing the active circuitry closer to the radiating elements.…”

A lightweight, 64-element, organic phased array with integrated transmit-receive SiGe circuitry in the X band

“…The aforementioned single-chip SiGe BiCMOS developments have allowed the recent implementation of lightweight, receive-only phased arrays in the X and Ku frequency bands [6]- [8]. In these implementations, a PS and an LNA within a single SiGe IC are used to drive individual [6] or several [7], [8] radiating elements in the array.…”

“…In these implementations, a PS and an LNA within a single SiGe IC are used to drive individual [6] or several [7], [8] radiating elements in the array. The true benefit of these designs relies on the reduction of the NF of the system as it is significantly improved by placing the active circuitry closer to the radiating elements.…”