Abstract: An antenna device includes a housing having a plurality of printed circuit board (PCB) panels connected together with folded joints therebetween to define a polyhedral shape having a first open end. Each of the PCB panels includes a dielectric substrate and an electrically conductive layer thereon inside of the housing. Wireless communication circuitry is mounted on at least one of the plurality of PCB panels outside the housing, and an antenna feed is connected to the wireless communication circuitry adjacent a second end opposite the first open end of the housing.

Abstract: An antenna device includes a housing having a plurality of printed circuit board (PCB) panels connected together with folded joints therebetween to define a polyhedral shape having a first open end. Each of the PCB panels includes a dielectric substrate and an electrically conductive layer thereon inside of the housing. Wireless communication circuitry is mounted on at least one of the plurality of PCB panels outside the housing, and an antenna feed is connected to the wireless communication circuitry adjacent a second end opposite the first open end of the housing.

Abstract: A resistive radio frequency (RF) signal power limiter is for connection between an antenna and a receiver circuit in an RF receiver system. The receiver circuit may include a low noise amplifier (LNA). The resistive RF signal power limiter may include at least one positive temperature coefficient (PTC) thermistor connected in series, and at least one negative temperature coefficient (NTC) thermistor connected in shunt between the at least one PTC thermistor and a reference voltage.