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846  Articles
1 of 86 pages  |  10  records  |  more records»
Context. Transition of modern electronics to higher frequencies is directly related with an extremely important problem ofminiaturization of microwave integrated circuits. Conventional planar structures such as microstrip directional couplers have thefeat... see more

Simple analytical relations for calculating parameters of microstrip directional couplers are obtained. It is shown that depending on the power splitting ratio k in the output ports of the circuit the technological restrictions of couplers are changed. At... see more

A coupled-line coupler based on the asymmetric cascade connection of two coupled line sections is used to achieve a high coupling factor using low-cost material and technology in the X frequency band, and its performance is compared with a standard quarte... see more

Tulisan ini menjelaskan tentang perancangan Coupled-Line Directional Coupler, sebuah passive device, dalam bentuk Mikrostrip untuk digunakan pada antena WiMAX dengan frekuensi kerja 2,3-2,4 GHz. Untuk mendapatkan unjuk kerja yang baik dari divais Coupled-... see more

In this paper, a wideband microstrip hybrid coupler designed, simulated, built and tested. These couplers have advantage of easy fabrication, lightweight and incorporation with other microwave devices and validated using 3D planar electromagnetic software... see more

We proposed and demonstrate the Si-modulatorusing three-waveguides coupler structure for the first time. Byusing three-waveguide structure can decrease the couplinglengthcontrary to conventional directional coupler structure. Forthe modulation operation, ... see more

The aim of the present study was to evaluate the use of the envelope difference index (EDI) and log-likelihood ratio (LLR) to quantify the independent and interactive effects of wide dynamic range compression, digital noise reduction and directionality, a... see more

Coaxial cable telemetry is most commonly used in the field of underwater applications like data logging in oil rigs, underwater wireless modem, underwater acoustic measurements, borehole measurements, deep sea telemetry for sediment analysis, airborne son... see more


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