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Why are RF PCBs hard to design?

I am a project procurement. Recentemente, Our project is to develop a television. Of all the materials supply, PCB was the slowest one. And even our engineer took part in the discussion with PCB supplier to push them. Is it really hard to make a RF PCB?

Because radio frequency makes electrons behave differently than they do at lower frequencies or at DC.

At lower frequencies, resistive effects dominate. però, at higher frequencies, impedance and capacitance start to dominate. Anche, at higher frequencies, electrons begin to be forced to the surface of a conductor, instead of traveling into the body of the conductor. And thematching surfaceof the dielectric insulator being used to support the conductor also has an effect on electron flow.
The electron exhibits both electronic and magnetic properties as it moves in a conductor. Then magnetic forces can also induce current and noise in nearby adjacent conductors. It causes noise, cross-talk, and eddy currents that disrupt desired operation of a complex circuit.

These effects become more expressed at higher frequencies used. To alleviate this, miniature transmission lines are designed into PCBs with specific physical size and spacing characteristics to make sure these high-speed signals are contained in the transmission lines, and also that the source impedance matches the load impedance as closely as possible.

All of these characteristics require the skilled application of mathematics, progettazione della scheda, and mounted components. It includes accommodations for voltages, currents, resistenza, time constants, impedenza, adattamento di impedenza, logic, and creativity, as well as an innate understanding of the interaction between these interrelated factors.

Leggi di più: PCB ad alta frequenza

#Consumer Electronic #PCB Design

Immagine di Oliver Smith

Oliver Smith

Oliver è un ingegnere elettronico esperto specializzato nella progettazione di PCB, circuiti analogici, sistemi integrati, e prototipazione. La sua profonda conoscenza spazia dall'acquisizione di schemi, codifica del firmware, simulazione, disposizione, analisi, e risoluzione dei problemi. Oliver eccelle nel portare i progetti dall'ideazione alla produzione di massa utilizzando il suo talento nella progettazione elettrica e la sua attitudine meccanica.
Immagine di Oliver Smith

Oliver Smith

Oliver è un ingegnere elettronico esperto specializzato nella progettazione di PCB, circuiti analogici, sistemi integrati, e prototipazione. La sua profonda conoscenza spazia dall'acquisizione di schemi, codifica del firmware, simulazione, disposizione, analisi, e risoluzione dei problemi. Oliver eccelle nel portare i progetti dall'ideazione alla produzione di massa utilizzando il suo talento nella progettazione elettrica e la sua attitudine meccanica.

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