Computer simulations and measured results for vertical interconnections between a CPW transmission line and a CPW chip (CPW-CPW) are presented. An equivalent electrical circuit, containing frequency ...independent elements, was extracted up to a frequency of 65 GHz and is also presented.
Recent results from the Microwave Electronics Laboratory at MC2, Chalmers University, on mil-limeterwave front-end circuits based on III-V-technologies such as mixers, amplifiers, frequency ...multipliers, IF-amplifiers with gain-control, and VCOs are presented. Reflection type VCOs, cross coupled pair and balanced Colpitt VCO, have been designed in both HEMT and HBT tech-nologies and results are compared. Various balanced and single ended 7 – 28 GHz MMIC fre-quency multipliers are described and compared. Single ended, balanced and single sideband mixers are also reported. Examples of multi-stage mHEMT and pHEMT wideband amplifier for example covering 43-64 GHz with a gain of 24 dB, a minimum noise figure of 2.5 dB and ripple of 2 dB are shown. In order to reduce the manufacturing cost for future 60 GHz products, a high integration level is necessary. Recent results on mHEMT and pHEMT multifunctional re-ceiver/transmitters utilizing the described circuits are reported.
In order to reduce the manufacturing cost for future 60 GHz products, a high integration level is necessary. Recent results on mHEMT and pHEMT multifunctional receiver/transmitters realized at ...Chalmers University are reported. Multifunctional MMICs utilizing single ended, subharmonically pumped, balanced and single sideband mixers are reported. Other chipsets for additional applications such as radiometers are reported as well. Most recently, a 220 GHz integrated receiver utilizing mHEMT technology was demonstrated.
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