GaAs abrupt junction varactors are fabricated from epitaxial layers grown at Microsemi using Chemical Vapor Deposition. The layers are processed using proprietary techniques resulting in a high Q factor and very repeatable tuning curves. The diodes are available in a variety of microwave ceramic packages or chips for operation from UHF to millimeter wave frequencies. The diodes are available in a variety of microwave ceramic packages or chips for operation from UHF to millimeter wave frequencies. Standard capacitance tolerance is ±10%, other capacitance values and custom mechanical configurations are also available.