Browse over 10,000 Electronics Projects using the Page Numbering provided at the bottom of each Page.

Miniature Magnetic Loops

Miniature Magnetic Loops

The magnetic loop antenna is a high-Q tuned antenna with a very narrow pass band?typical range is 10-25 KHz. The performance of the magnetic-loop antenna is similar to a ? wave dipole.
The magnetic loop antenna does not like being near metal of any kind. In fact, so sensitive is the loop to metal, that the best SWR is achieved by running the coax directly down to ground level and then away from the antenna, perpendicular to the antenna?s face. If mast mounting is desired, the mast must not be made of metal. The loop is also sensitive to the presence of one?s body, causing a slight de-tuning of the antenna. This is why some magnetic loop designers have experimented with low RPM DC or Step motor remote control. With practice, the user will be able to compensate for this de-tuning factor. Support structures for the loop should be comprised of unpainted wood, plastic or fiberglass.

– PDF File

Visit Here for more.

 

More Articles to Read

Single-Sided USB Charger
Single-Sided USB Charger
A FPGA controlled RGB LED MATRIX for Incredible Effects – the Hardware
A FPGA controlled RGB LED MATRIX for Incredible Effects – the Hardware
Using Nanotimers to Reduce IoT System Power Consumption by an Order of Magnitude
Using Nanotimers to Reduce IoT System Power Consumption by an Order of Magnitude
Replace a microwave’s beeping with the Windows XP startup sound
Replace a microwave’s beeping with the Windows XP startup sound
A DIY Laser Scanning Microscope
A DIY Laser Scanning Microscope
Reverse-engineering the surprisingly advanced ALU of the 8008 microprocessor
Reverse-engineering the surprisingly advanced ALU of the 8008 microprocessor
ESP8266 LED lighting: QuinLED v2.6 PCB
ESP8266 LED lighting: QuinLED v2.6 PCB
Switching LVDS Graphics in a Laptop Computer
Switching LVDS Graphics in a Laptop Computer
Teleknitting: TV-based string art
Teleknitting: TV-based string art
DIY Bubble Machine
DIY Bubble Machine
Start your day with Nerf target practice!
Start your day with Nerf target practice!
Teardown of a Peaktech 6225A
Teardown of a Peaktech 6225A

Top




Shares