With LTSpice and a loop antenna model, you can easily compare wideband loop amplifier performance. Here is my evaluation of several popular circuits. Read more
Series: Compare Wideband Loop Amplifier Performance
With LTSpice, you can evaluate and compare the performance of different amplifiers before you build one for your active loop antenna.
Dipole Versus Wideband Magnetic Loop Performance
Dipole versus wideband magnetic loop performance simulations show that a good active loop will stack up fairly well on the HF ham bands. Read more
Loop Current-to-Voltage Converter – A Short Story
A transimpedance amplifier provides a near perfect loop current-to-voltage converter. It provides lots of gain while keeping your loop in wideband or short-circuit mode, which is what you need. 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