Progettazione PCB

Una semplice antenna filare ha bisogno di un 50 linea di trasmissione ohm?

Dipende.

  • If you’re talking about a “long wire” (more typically/accurately, un random wire antenna) used for receiving only, then the line impedance isn’t at all an issue. As long as it’s properly insulated at the right spots, you can run the wire right up to the receiver input and get excellent results. Using a 50 ohm line (which would almost certainly be some type of coax) here would generally be mostly for convenience, because the receiver has an input connector best used with a coaxial cable (per esempio., a BNC or SO-239).
  • If we’re talking about an antenna to be used for transmitting, Anche se, the answer becomes more complicated. There are two primary concerns when connecting a transmitter to its antenna:
    1. Getting the most power transferred to the antenna and actually radiated.
    2. Protecting the transmitter’s output stages from the effects of high SWR.

Available choices of feedlines range from the typical coax cables at 50–75 ohms through “ladder lines” than can have characteristic impedances in the hundreds of ohms.

Leggi di più: Cavo & Assemblaggio del cablaggio

#Progettazione PCB

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.

messaggi recenti

BGA Reballing: An Essential Process in Electronics Repair and Maintenance

BGA reballing emerges as a critical repair technique for modern electronic devices. Al giorno d'oggi, Introduzione di un nuovo prodotto…

1 week ago

What Are PCB Stiffeners? Exploring Their Types, Uses, and Thicknesses

Do you know what PCB stiffeners are? They are widely used in flex and rigid-flex

3 weeks ago

Why PCB Warpage Happens and How You Can Prevent It?

Nel processo di produzione dei PCB, PCB warpage is a common problem that manufacturers would encounter.

1 month ago

What Is a PCB Netlist? Tutto ciò che devi sapere è qui

In the world of printed circuit board design and manufacturing, precision and accuracy are paramount.

2 months ago

What Is Solder Wetting and How to Prevent Poor Wetting?

Soldering is a cornerstone technique in electronics assembly, it's used to connect electrical pieces and

2 months ago

7 Critical Techniques to Improve PCB Thermal Management

Al giorno d'oggi, electronic products are both compact and lightweight while performing a variety of functions. Questo…

3 months ago