Sotabeams Pico Balun - 1:1 / 4:1 balun kit 10W

Complementing our growing range of light-weight products, the Pico Balun is sure to be popular.  A high frequency transformer using a twisted-pair transmission line gives the desirable characteristics of small size, low weight and low loss. A tiny patch-panel allows the Pico Balun to be configured as either a 1:1 current balun or as a 4:1 impedance transformer when you build it.

Power rating - 10 Watts
PCB size - 60 x 57mm (2.4 x 2.25 inches)
Weight - 3.5 grams (<0.15 oz.) approx.
1:1 balun measurements
VSWR < 1.15:1, RL > 24.5 dB, f= 1 MHz - 30 MHz)

Common mode impedance:

> 1500 Ohms above 16 MHz
> 1000 Ohms from 5 MHz to 16 MHz
> 600 Ohms from 1.8 MHz to 5 MHz*

Through loss < 0.2 dB  from 1 MHz to 30 MHz (measured at 30 MHz)

4:1 balun measurements
VSWR < 1.15:1, RL > 24.5dB, f = 1.8 MHz - 30 MHz