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In this paper, a novel circuit topology of a CMOS divide-by-4 direct injection-locked frequency divider is presented for millimeter-wave applications. To enhance the locking range for circuit operations with a division ratio of 4, a series peaking technique is introduced in the proposed divider structure such that improved input injection efficiency can be achieved. Using a standard 0.18-μm CMOS process,...
In this paper, we design and fabricate a coplanar waveguide (CPW) bandpass filter operating at 60 GHz. A new DGS pattern is proposed and serves as the unit cell. We cascade two unit cells to construct a second-order bandpass filter. The equivalent lumped element circuit model was extracted form the full-wave electromagnetic simulation. Moreover, we obtain good agreement between circuit model analysis...
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