Ham radio is not just a hobby. It’s an entire culture and way of life, one that allows you to connect with other hams around the world.
Ham radio antennas are crucial for creating your own personal wireless network in your area, but there are many different types of ham radio antennas that can be used for different purposes.
A ham radio antenna is a type of electronic device that is used to broadcast or receive a signal. It has a number of uses, and can be used for broadcasting various types of signals over the airwaves.
Ham antennas can help you receive information in many different ways, whether it’s from space or from another country.
What Are Ham Radios?
Ham radios are the oldest, simplest and most popular form of two-way radio communication. They work on a simple principle of sending and receiving signals between two antennas.
The most important aspect of ham radios is that they are open to anyone who wants to operate them with no licensing or certification required.
There are thousands of ham radio operators worldwide and about 15 million people have a license for amateur radio in the United States alone.
A key benefit of ham radios is that they can provide reliable communications during emergencies such as natural disasters when other forms of communication might be unavailable or disrupted by power outages or other factors.
Ham Radio Antenna Types
1. Log Periodic Antenna
A periodic antenna is an antenna that has a frequency that repeats at regular intervals.
In the most common form, it is a resonant circuit with a tuned circuit or capacitor in series with the antenna element. It can be used to transmit or receive radio waves and electromagnetic radiation, and in some cases microwaves.
The most common use of periodic antennas is as an intermediate frequency (IF) filter, where they are placed in front of a communications receiver’s mixer to remove unwanted noise from its input signal before mixing it with the desired carrier signal.
2. Wire Antenna
A wire antenna is a type of antenna that is formed by connecting the ends of an electrically conductive metal rod to the terminals of a transmission line. It can be used as a receiving or transmitting antenna, or both.
Wire antennas are commonly used in radio, television and microwave communications systems because they are inexpensive to construct and easy to use.
3. Dual Band VHF/UHF Antenna
A dual band VHF/UHF antenna is a perfect solution for those who want to transmit and receive signals on two different frequencies.
This type of antenna can be used in multiple situations like to broadcast the signal from your radio, or in order to extend the range of your Wi-Fi network.
Kind of antenna is also useful if you have a VHF/UHF radio that has been modified for marine use, as it will allow you to stay connected with coastal stations even when sailing offshore.
This type of antenna does not work well with analog radios as it will cause interference with other digital signals like DTV and FM radio.
4. Microwave Antenna
Microwave antennas are used to transmit and receive radio waves.
To use a microwave antenna, you will need a source of electrical power and the antenna itself.
When you have your microwave antenna connected to the power supply, you can then attach it to an external device like a radio or television receiver that is also equipped with an RF (radio frequency) input connector.
5. Traveling Wave Antenna
A traveling wave antenna is a type of resonant circuit that is used to pick up and transmit radio waves.
There are many different types of antennas, but the traveling wave antenna is one of the most commonly used types. This type of antenna consists of a length of wire or metal strip with a feed point at one end and an end-cap at the other.
The feed point has an impedance that can be adjusted to match that of the desired frequency range, while the matching circuit may consist of capacitors or inductors.
It’s main function is to provide selective amplification and/or phase shift on a single transmission line by exploiting either time delay or frequency change in response to incident electromagnetic radiation.
6. Reflector Antenna
This antenna is used to receive or transmit radio waves.
The main purpose of a reflector antenna is to reflect and/or absorb the signal coming from an external source like a transmitter or receiver so that it can be transmitted or received without being disturbed by unwanted noise.
Reflector antennas are often found in telecommunication systems, radar, satellite navigation systems, mobile phones, Wi-Fi hotspots and cordless phones.
7. Dipole Antenna
In order to understand what a dipole antenna is, we need to first understand the meaning of monopole and dipole antennas.
A monopole antenna is a single-element antenna that radiates energy in one direction, typically upward or downward.
A dipole antenna consists of two conductive elements that are electrically connected at their center points and are spaced apart from each other by a small distance (typically half an wavelength).
Dipoles can be configured as right-hand circularly polarized or left-hand circularly polarized depending on how the elements are arranged relative to each other.
A dipole trap antenna is a radio antenna that uses two identical half-wave dipoles to radiate and receive signals.
The term “dipole” refers to the two conductive rods (wire or metal) of an antenna, separated by a small distance and connected at one end to ground.
One advantage of using this type of antenna is that it has high directivity, meaning that it can transmit or receive more power in one direction than another. This is beneficial for applications such as antennas used on satellites, aircraft and vehicles.
Related also: How to build dipole antenna full guideline.
8. EFHW Antenna
EFHW Antenna is a type of antenna that transmits and receives signals using electromagnetic waves. It uses the frequencies between 300MHz to 3000MHz for both transmitting and receiving signals.
The benefits of EFHW Antenna are:
• Efficient – The antenna has high efficiency in terms of both transmit and receive capabilities, with a gain factor ranging from 6dB to 20dB.
• Flexible – With the ability to use two different types of feed (impedance or direct), it can be used for a variety of applications.
• Small – Its small size makes it suitable for many mobile devices, including tablets, smartphones, cameras, laptop computers, portable media players, Bluetooth headsets and wireless mice.
9. Yagi or Directional Antenna
we need to understand some key things related to antennas like: What is an antenna?
What are the benefits of directional antennas? and finally what are the steps involved in buying a Yagi or Directional Antenna.
Simply put: An antenna is a device that sends and receives radio waves for use in wireless communication systems. The term can also refer to a particular arrangement of conductive elements which form an aerial or its support structure.
The key benefit of directional antennas is that they have greater range compared to omnidirectional antennas. They typically have higher gain and narrower beam widths, so they’re able to receive signals from specific directions with less interference from other sources.
Helps them produce higher quality data transmissions with lower power consumption than omni-directional antennas.
10. HF Wire Doublet Antenna
HF Wire Doublet Antenna is a type of antenna used for HF radio transmission. It has two wires that are separated by a small gap, which acts as an impedance transformer.
The basic design of the antenna is a half-wave dipole with its two arms twisted together in such a way that the distance between them is much shorter than the length of either wire and it is fed at one end with its long arm.
It also has an impedance matching section that consists of capacitors or inductors to match impedances on both sides.
Having learned what type of ham radio antenna will best suit your purposes, you can make a more informed decision about which one to choose.
All of them have advantages and disadvantages. Ensure you have determined all the details of your requirements before you buy.