Balun for dipole and folder dipole antenna

**Balun is an electrical device that converts between a balanced signal and an unbalanced signal** - to match the dipole (impedance 73 Ohm) using a transformer 1:1.5 - 73/1.5 = 48.7 Ohm; - to match the folder dipole (impedance 292 Ohm) using a transformer 1:1.5 - 292/1.5 = 194.7 Ohm and transformer 1:0.25 - 194.7*0.25 = 48.7 Ohm. **Examples:** - for Cable pressure connector; - for Cable soldering connector. **Specifications:** - Dipole antenna frequency range 0.5...550 MHz; - Folder Dipole antenna frequency range 2...550 MHz; - RF cable: RG5, RG6, 5D-FB, LMR300; - Power: less or equal 0.25 W; - Feed line: 50 Ohm (Designed with PCB Toolkit V7.11); - Used PCB Material: FR-4; - PCB thickness: 1.6 mm. **Accessories:** - TC1.5-52TX+ 1:1.5 CORE & WIRE Transformer, 0.5...550 MHz, 50 Ω, 0.25 W: [Mini-Circuits TC1.5-52TX+](https://www.minicircuits.com/WebStore/dashboard.html?model=TC1.5-52TX%2B); - TC4-11X+ 1:0.25 CORE & WIRE Transformer, 2 - 1100 MHz, 50 Ω, 0.25 W: [Mini-Circuits TC4-11X+](https://www.minicircuits.com/WebStore/dashboard.html?model=TC4-11X%2B).