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A simple oscillator with perfect output power using a series feedback and circuit matching is proposed. The oscillator is implemented by tuning the positive feedback of the source and gate of the transistor and provides a free-running oscillating signal of 12 GHz. The output power of the oscillator is 10.16 dBm. This result is in good agreement with simulation.
In this work, a smooth bridge between a traditional microstrip line and a two parallel metallic strips drilled with symmetrical grooves is designed to achieve ultra-wideband low-pass filtering characteristics. Numerical simulations on the S-parameters demonstrate the good performance in the whole pass band. This kind of plasmonic filter poses potential applications in developing advanced plasmonic...
In this work, a band-pass plasmonic filter composed of a traditional microstrip line and a gradient metallic strip drilled with subwavelength holes is proposed. Numerical simulations on the S-parameters demonstrate the good performance in the pass band. This kind of plasmonic filter poses potential applications in developing advanced plasmonic integrated circuits in the microwave and terahertz frequencies.
A rectangular waveguide (RW) to domino plas-monic waveguide (DPW) converter in X-band (8.2–12.4GHz), which is based on the high-efficiency conversion between guided waves and domino plasmon polaritons (DPPs), is proposed in this work. A matching transition composed by gradient domino arrays and flaring upper wall to match the wave number and impedance between the RW and DPW has been presented and...
A design of absorber using two-dimensional (2-D) periodic arrays of double-square split loops and resistive strips printed on grounded dielectric substrate is investigated in this letter. Unlike the traditional structure, graphene sheets are proposed for thin absorbing structures at microwave frequencies. The analysis of absorption properties is based on the dynamic model of graphene, which takes...
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