Varactor diode is a capacitor of which capacitance varies according to the change of reverse bias voltage and has advantages of small size (easily integrated), high speed operation, low thermal noise, ...

A shared square open-loop dual-mode resonator and two varactor diodes are the basic units offering flexible tuning for the dual-band operation. A back-to-back varactor diode between the split of the ...

Recently, ‘Liquid crystal display (LCD) vs. organic light-emitting diode (OLED) display: who wins?’ has become a topic of heated debate. In this review, we perform a systematic and comparative ...

Between OLED and QLED, which TV technology is the best? We compare brightness, contrast, color and more to settle things once and for all. David reviews TVs and leads the Personal Tech team at ...

OLED, or Organic Light-Emitting Diode, refers to a self-emissive panel technology in which each pixel can be individually lit. QLED, or Quantum Dot Light-Emitting Diode, is an umbrella phrase used in ...