Indoor antenna "triple square" Signal 3.0

[Admin 2561]

One of the very common types of antennas are loop antennas "triple square". And this applies not only to television, but to various types of wireless communication — Wi-Fi, 3G etc.

Of course, frequency UHF 470 — 862 MHz are lower than Wi-Fi 2.4 GHz, but it is also worth considering.

 

Central plastic stand is a holder for the active vibrator contains a passive antenna and the matching Board:

in the form of equivalent half-wave cable loops on single sided PCB:

The plastic center column with cable and the Central frame — the active vibrator (square side — 126mm):

Rear frame reflector (side of the square — 154 mm) with bottom plastic spacer:

Front frame — Director (the side of the square — 108 mm) with plastic spacer:

Distance between the rear frame and the Central — 78 mm, and between Central and front — 58 mm.

All part of used stainless steel wire diameter 4 mm.

[TUL 1]

The front director frame has a cut / gap in the middle of the bottom of the square. The gap in the cut is about 1.5-2 mm. The gap is closed with a plastic holder.

This is to widen the band. Was the director's clearance taken into account in the model when calculating?

http://dvbpro.ru/obzor-komnatnoy-antenny-troynoy-kvadrat-signal-3-0/

[Admin 2561]

,,,no,I think that the director's clearance, it"s not taken into account in the model when calculating...!!!