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Q&A

Posts tagged Antenna

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77%
+5 −0
Q&A Is there a way to reliably measure antenna return loss outside a lab?

Assume I'm a complete beginner at RF. Is there a way to measure return loss of an antenna, in such a manner that I can reliably reproduce the measurement later on? What I'm talking about is produ...

2 answers  ·  posted 1y ago by Lundin‭  ·  last activity 4mo ago by TonyStewart‭

75%
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Q&A What effect will extreme temperatures have on impedance in a wire?

My scenario is this: radio equipment controlling an overhead crane inside a steel mill. Specifically it is used for transporting melting pots. With the current, unfortunate installation, the antenn...

1 answer  ·  posted 6mo ago by Lundin‭  ·  last activity 6mo ago by Olin Lathrop‭

28%
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Q&A Electromagnetic induction

If I connect a battery to an LC tank and then to an antenna and then on the other side at a distance x, I connect an antenna to another LC tank and this to a diode and this to an LED, Do a I have a...

1 answer  ·  posted 11mo ago by Voyager ll universe probe‭  ·  last activity 11mo ago by Olin Lathrop‭

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Q&A Electric circuit with antenna

Moderator's note: This is getting ridiculous. You keep posting these drawings that are barely legible. The scribbling is bad enough, but the uncropped images are unacceptable. The image you ori...

1 answer  ·  posted 1y ago by MissMulan‭  ·  last activity 1y ago by Olin Lathrop‭

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Q&A Why are antenna PCB traces square instead of rounded?

While doing some reading on RF designs I ran across this paragraph: I have never designed an RF circuit, but all the PCB trace antennas I have seen on development boards are square. For example,...

2 answers  ·  posted 1y ago by Kranulis‭  ·  last activity 1y ago by TonyStewart‭

Question PCB Antenna RF
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Q&A Antenna Feed Line Question

Hello, I am designing 1/4 WL strip antenna for a bluetooth chip and i had some questions regarding the 50 Ohm feed line. Right now I am using a Nordic-recommended 1.5mm trace width and a 23mm + 4mm...

1 answer  ·  posted 2y ago by jm567‭  ·  last activity 2y ago by Olin Lathrop‭

Question Antenna RF