In this paper, fully embedded and miniaturized diplexer device has been developed and characterized for dual-band/mode CDMA handset applications. The size of the embedded diplexer is significantly reduced by embedding high Q circular spiral inductors ...
In this paper, fully embedded and miniaturized diplexer device has been developed and characterized for dual-band/mode CDMA handset applications. The size of the embedded diplexer is significantly reduced by embedding high Q circular spiral inductors and high DK MIM capacitors into a low cost organic package substrate. The fabricated diplexer has insertion losses and isolations of -0.5 and -23㏈ at 824-894㎒ and -0.7 and -22㏈ at 1850-1990㎒, respectively. Its size is 3.9㎜ × 3.9㎜ × 0.77㎜ (height). The fabricated diplexer is the smallest one which is fully embedded into a low cost organic package substrate.