A “strange” antenna first introduced in the 70’s and its origine lies in Japan. It is said that the name “Hentenna” comes from the Japanese word for “strange”.

The “strange” thing from this antenna is that although it looks like a vertical antenna, it is polarized horizontal….

Due to its “simplicity”, easy to construct… and low weight with impressive performance it is a well known antenna for portable use or as a “fun” antenna for the novice antenna builder.

A impressive antenna …..which will allow you to have loads of fun !

 

	Hentenna 50 ohm
Design freq:	27,555 MHz
Gain:	4,75 dBi
F/B:	18,82 dB
Beam width:	88,6 degrees
Band width	0,5 MHz
Wire	1,5mm2
1=	1.600mm
2=	1.600mm
3=	1.600mm
4=	4.264mm
5=	4.264mm
6=	1.175mm
7=	1.175mm

Azimuth plot —————————————–

 

 

 Elevation plot on 12 meters height

 

The SWR can be changed by changing the height of wire 1 in the loop.