LTSpice limitations can bite. The macro models used in simulation don’t sufficiently take into account parasitic and circuit layout effects that can haunt you down the road. Read more
Tag: magloop
Dual Base Amplifier for Wideband Loops
My dual base amplifier is built to match remote wideband loops to a coherent two-channel receiver. Implemented with wideband FET op amps, performance is great. Read more
Wideband Loop Initial Build – Mixed Results
Good news, bad news. My wideband loop initial build sort of works, but the transimpedance amplifier has stability problems. Read more
Wideband Loop Base Amplifier Feeds Receiver
We complete the electronics requirements for our loop antenna design with a wideband loop base amplifier to match the transmission line to a receiver. Read more
KiCAD PCB Design – A Fully Integrated Solution
KiCAD PCB design is something every electronics maker should learn and use for their printed circuit boards. It does pretty much everything and it’s free. Read more
Wideband Loop Transmission Line Choices
With a little ingenuity, you can select either coaxial or network cable for your wideband loop transmission line. Either will work, but I am going with twisted pair. Read more
Wideband Loop Antenna Head End – TIA In Action
Implementing a wideband loop antenna head end appears fairly simple with a transimpedance amplifier. But there are some tradeoffs between gain, stability and bandwidth you need to make. Read more
Wideband Loop Transimpedance Op Amp Selection
You can select candidates for a wideband loop transimpedance op amp by reading data sheets and simulating performance in LTSpice. Read more
Wideband Loop Antenna Implementation Begins
Enough theory. It’s time to start the wideband loop antenna implementation using real parts and circuits. Read more
Loop Amplifier Input Impedance – Keeping It Low
Popular circuits do a pretty good job of providing low loop amplifier input impedance. This means you can use these to keep a loop in short-circuit wideband mode quite easily. Read more