2. The State-of-the-Art of RF-Devices

This chapter describes the present state-of-the-art and gives several comparisons of device technologies with respect to analog high-power, high-speed analog, and high-speed digital applications. For the classification of the frequency bands, see Table 2.1.

Table 2.1: Naming convention of the frequency bands.

Name	f	Name	f
	[GHz]		[GHz]
X	8-12	V	50-75
K	18-26.5	W	75-110
Ka	26.5-40	D	110-170
Q	33-50	G	140-220