7.1 C
London
HomeTV ANTENNASWhat is a helical antenna?   or helix antenna: features

What is a helical antenna?   or helix antenna: features


Youtube

What is a helical antenna or propeller antenna is one whose construction is formed by a helix-wrapped conductor of its second name.

It has a solenoid shape and its origin comes from the vertical monopole antenna.
A solenoid is a physical device that is capable of creating a uniform magnetic field.

One of the typical basic solenoids is a coil or a transformer that is applied to an antenna.

Characteristics


1 ⇒ Broadband

  • The helical antenna has a large bandwidth.
  • A propeller is the result of winding a thread on a cylinder object.

2 ⇒ Helix Geometry

  • Coil Diameter.
  • Separation between two consecutive turns.
  • Turn number the propeller has.
  • Thread Diameter.
  • Winding direction (Right or Left).

3 ⇒ Circular type polarization.

  • The direction of rotation is defined by the driver (Right or Left).

Operating mode

1 ⇒ Depending on the size of the propeller

  • There are two basic helical antenna modes.
  • Normal mode: it is the antenna built on a ground plane.
  • Axial Mode: it has great directivity and high bandwidth.

Classification

1 ⇒ Antena para radio

  • For portable radio.

2 ⇒ Satellite reception antenna.

  • These have application in reception of satellite signal and operate in frequencies that comprise 1575.42 MHz.
  • Antenna is circular polarization.
    The turns are separated a little less than the propeller.

3 ⇒ HALO antenna.

  • It is a helical antenna.
  • This is basically used in the VHF reception.
  • They are omnidirectional antennas.
  • They offer good profits.

Properties of the helical antenna

1 ⇒ Polarization.

  • The polarization of the helix antenna is circular (vertical or horizontal in equal parts).

2 ⇒ Impedance.

  • These antenna offer low impedance and must be adapted to transmitters with impedance adapters.

3 ⇒ Resonance.

  • It is a resonant antenna at the basic or fundamental frequencies.

Helical antenna dimensions

1 ⇒ Helical dimensions are given by acronyms.

  • D = helical diameter “Center to center of conductor”.
  • C = circumference perimeter “ΠD”.
  • S = Space between turns “center to center of the driver”.
  • ∝ = It is the elevation angle “tan-1 / ΠD”.
  • L = Length of one turn.
  • n = Number of turns.
  • A = Axial length “nS”.
  • d = helical conductor diameter.
  • G = The diameter of the ground plane.

TV Antenna List

First of all, if you don’t have a TV antenna in your home, we leave you an antenna list so you can tune into the TV channels of your country or region.


1- How to make a homemade tv antenna.

2- Super, Sencilla y Económica ✅ Antena para TV▶️ Coaxial & Splitter.

3- Antena log periodic – Diseño para la construccion- antena para tv.

4- Como hacer una antena de tv casera de largo alcance.

5- Como hacer una antena casera para tv Clip & Splitter.

In the JM Actualidades channel we have antenna manufacturing videos for every need, so visit the YouTube channel.

Related questions:

  • A- What is a helical antenna?.
  • B- helical antenna features?.
  • C- How to program wifi to lg tv for antenna?.
  • D- buy helical antenna?.
  • E- how to calculate the gain of a helical antenna?.
  • F- vhf helical antenna?.

You need more information, you can find it in the following article on Antenna

latest articles

explore more

LEAVE A REPLY

Please enter your comment!
Please enter your name here

Este sitio web utiliza cookies para que usted tenga la mejor experiencia de usuario. Si continúa navegando está dando su consentimiento para la aceptación de las mencionadas cookies y la aceptación de nuestra política de cookies, pinche el enlace para mayor información.plugin cookies

ACEPTAR
Aviso de cookies
Ads Blocker Image Powered by Code Help Pro

Ads Blocker Detected!!!

We have detected that you are using extensions to block ads. Please support us by disabling these ads blocker.

Powered By
Best Wordpress Adblock Detecting Plugin | CHP Adblock