them can still be observed, which can be attributed to the unexpected tolerance of fabrication.
CONCLUSIONA novel dual-frequency unequal Wilkinson power divider is presented in this article, which fulfills an arbitrary unequal power split and all the other features of a conventional Wilkinson unequal power divider simultaneously at two arbitrary frequencies. The structure of this power divider and the formulas to determine its parameters have been given and a good agreement between the simulation and measurement has been achieved. This simple topology and design procedure make the proposed circuit suitable for dual-frequency applications, which are more demanding at near future.
REFERENCES
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ABSTRACT: The high interdevice isolation levels is one of the key technologies in the design and fabrication of 60-GHz WPAN SoC. To obtain proper interdevice isolation levels, we have analyzed and measured substrate coupling effects with various isolation techniques like a trench and implant structure.From the analyzed and measured results, the feasibility of the implant has confirmed to be applicable to the mm-wave SoC, and also derived an equivalent circuit form these results, which can be helpful to the design and fabrication of the 60-GHz WPAN SoC.
ABSTRACT:We propose a simple configuration of a traveling wave tunable semiconductor fiber ring laser. The proposed laser can be tuned over 93 nm with an output power of 1.3 dBm using a thin film fiber Fabry Pérot filter.
Figure 4The measured results and equivalent circuit results of (a) the magnitude and (b) phase of the interdevice isolation levels 1702