A switchable multibeam antenna array with a compact planar feeding network is presented. Operating within 1 GHz bandwidth at 28 GHz, this 4 × 4 antenna can generate onebeam, two-beam and four-beam ...

This paper presents a 2.45-GHz CMOS ring voltage-controlled oscillator (VCO) with a temperature compensation of the oscillation frequency. This compensation is achieved thanks to a biasing current ...