Wireless standards are a set of specifications that define how wireless devices communicate with each other. There are many different wireless standards in use today, each with its own strengths and weaknesses.
The most common wireless standard is IEEE 802.11, which is also known as Wi-Fi.. Wi-Fi is available in many different speeds, including 802.11b (11 Mbps), 802.11g (54 Mbps), 802.11n (300 Mbps), 802.11ac (1.3 Gbps), and 802.11ax (up to 10 Gbps). (See table) You will also notice the frequencies in the table. Wireless standards are either dual or single band. Single band on 2.4Ghz will be able to travel further and are less prone to wireless interference than 5Ghz but 5Ghz has can deal with higher data rates. Dual band can switch between the two.
Wireless bands also operate on different channels;
| Band | Channels |
|---|---|
| 2.4 GHz | 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 |
| 5 GHz | 36, 40, 44, 48, 149, 153, 157, 161, 165 |
Another common wireless standard is Bluetooth. Bluetooth is a short-range wireless technology that is used for connecting devices that are close together, such as smartphones, headphones, and speakers. Bluetooth is available in different speeds, including Bluetooth 1.0 (723 kbps), Bluetooth 2.0 (3 Mbps), Bluetooth 3.0 (24 Mbps), Bluetooth 4.0 (2 Mbps), Bluetooth 4.1 (1 Mbps), Bluetooth 4.2 (1 Mbps), Bluetooth 5.0 (5 Mbps), and Bluetooth 5.1 (2 Mbps).
There are also many other wireless standards in use today, such as Zigbee, Z-Wave, and WiMAX. Each of these standards has its own strengths and weaknesses, so it is important to choose the right standard for your needs.
When to Choose Other Wireless Standards
Other wireless standards, such as Zigbee, Z-Wave, and WiMAX, are good choices for specific applications. For example, Zigbee is a good choice for connecting low-power devices in home automation networks. Z-Wave is a good choice for connecting security devices, such as door locks and motion sensors. WiMAX is a good choice for providing broadband internet access in rural areas.
Choosing the Right Wireless Standard
The best way to choose the right wireless standard is to consider your needs. If you need to connect devices to the internet, Wi-Fi is a good choice. If you need to connect devices that are close together, Bluetooth is a good choice. If you need to connect devices for a specific application, such as home automation or security, consider other wireless standards.
Wireless antenna types
- Omnidirectional antennas: Omnidirectional antennas radiate in all directions, providing a 360-degree coverage. Omnidirectional antennas are a good choice for applications where you need to cover a wide area, such as in a home or office.
- Directional antennas: Directional antennas radiate in a specific direction, providing a more focused signal. Directional antennas are a good choice for applications where you need to extend the range of your wireless signal, such as in a point-to-point link or a wireless bridge.
- Patch antennas: Patch antennas are a type of planar antenna that is typically mounted on a flat surface. Patch antennas are a good choice for applications where you need a low-profile antenna, such as in a laptop or a smartphone.
- Yagi antennas: Yagi antennas are a type of directional antenna that is made up of a series of parallel elements. Yagi antennas are a good choice for applications where you need a high-gain antenna, such as in a wireless access point or a satellite dish.
- Log-periodic antennas: Log-periodic antennas are a type of broadband antenna that is made up of a series of elements that are logarithmically spaced. Log-periodic antennas are a good choice for applications where you need a wide bandwidth antenna, such as in a Wi-Fi router or a cellular base station.
No comments:
Post a Comment