Description
What is an Antenne 433 MHz Spring Helical Antenna?
This helical spring Antenne 433 MHz Ciol Antenna CTRF-ANTENNA-SP-0433-2603 type is a 433 MHz Lora antenna spring helical antenna manufactured by C&T RF Antennas Inc. that is used as an indoor antenna for wireless network communications transmission.
The CTRF-ANTENNA-SP-0433-2603 Antenne 433 MHz is a plated Spring Helical Antenna for Lora and ISM bands.
C&T RF Antennas Inc provides internal & external antennas with antenna radio frequencies such as NFC, 169MHz, 230MHz, 315MHz, 433MHz, 868MHz, 915MHz, VHF&UHF, Lora, NB-IoT, ADS-B, GSM, GNSS, GPRS, 1.2 GHz, 1.4 GHz, 1.8 GHz, Wi-Fi 2.4 GHz, 5.8 GHz, Cellular 2G, 3G, 3.5 GHz, 4G LTE, GPS, 5G NR, 6G, etc.
C&T RF Antennas Inc. provides RF antennae with Omni & Directional antenna types such as Dipole Antennas, Whip Antennas, Marine Antennas, Router Antennas, MIMO Antennas, Combo Antennas, PCB Antennas, FPC Antennas, Spring Antennas, Magnetic Antennas, Sector Antennas, Yagi Antennas, and Accessories, etc, for IoT & M2M industries.
Contact us for the Antenne 433 MHz Spring Helical Antenna for more details such as Antenne 433 MHz Spring Helical Antenna datasheet, Antenne 433 MHz Spring Helical Antenna pricing, Antenne 433 MHz Spring Helical Antenna inventory, or other 433MHz Helical Antenna types.
Antenne 433 MHz Spring Coil Antenna Specifications:
Antenne 433 MHz Spring Coil Antenna Electrical Specifications |
|
| RF Antenna Type | Embedded Spring Antenna |
| Model | CTRF-ANTENNA-SP-0433-2603 |
| Frequency | 433 MHz |
| Gain | 2.5dBi |
| VSWR | ≤2.0 |
| Impedance | 50 Ω |
| Polarization | Vertical Polarization |
| Lightning Protection | DC-Ground |
Antenne 433 MHz Spring Coil Antenna Mechanical Specifications |
|
| Dimension | 26*3.7mm |
| Weight | Approx. 4g |
| Material | Copper Wire |
| Operation Temperature | – 40 ˚C ~ + 65 ˚C |
| Storage Temperature | – 40 ˚C ~ + 70 ˚C |
| Finished Antenna Color | Copper |
| Antenna Design | Internal Antenna |
| Mounting | Soldered |
| SafetyEmission and other | RoHS Compliant |
| Applications | IPublic Safety/LMR/P25/TETRA, ISM/SCADA/Utilities, RFID, IoT/M2M/LoRa, etc. |
What is a Spring Helical antenna?
The spring helical antenna is a type of antenna that can transmit and receive polarized electromagnetic signals rotating in space. Such antennas are usually used in ground stations for satellite communications.
Use unbalanced feeders, such as coaxial cables, to connect the center of the cable to the spiral part of the antenna, and connect the outer sheath of the cable to the reflector.
More Antenne 433 MHz Spring Helical Antenna Types
C&T RF Antennas Inc. also supplies the spring antenna coil helical antenna with 315 Mhz, 433 Mhz, 868 Mhz, 915 Mhz, Wifi, GSM, etc.
High-performance 433 MHz Spring Antenna Applications
433MHz Helical antenna simulation
The shortest and simplest one is even the 1/4 wavelength antenna, the formula:
Wave speed/frequency=wavelength, 300/433=0.69m The 1/4 antenna can be made of 16 cm copper wire. If the length is reduced, it can also be wound into a helical antenna. This antenna is generally used for walkie-talkies.
How to calculate the wireless transmission distance?
The best antenna length is 1/4 of the wavelength
Wavelength = wave speed/frequency
Wave speed = speed of light = 3*100000000
The alternating current in a piece of metal wire can emit alternating induced electric fields and induced magnetic fields into space, which is the emission of radio signals.
On the contrary, the alternating electromagnetic field in space can induce an alternating current when it encounters a metal wire, which corresponds to the reception of wireless signals.
When the radio station is transmitting and receiving, it is hoped that the alternating current in the wire can be effectively converted into an electromagnetic wave in space, or the electromagnetic wave in space can be most effectively converted into an alternating current in the wire.
This requires the wire used for transmitting and receiving to obtain the best conversion efficiency, and the wire used for transmitting and receiving wireless electromagnetic wave signals that meet such requirements is called an antenna.
Theory and practice have proved that when the length of the antenna is 1/4 of the wavelength of the radio signal, the transmission and reception conversion efficiency of the antenna is the highest.
Therefore, the length of the antenna will be determined according to the frequency or wavelength of the transmitted and received signals.
As long as you know the center frequency of the corresponding transmission and reception, you can use the following formula to calculate the wavelength of the corresponding radio signal, and then divide the calculated wavelength by 4 to get the corresponding optimal antenna length.
Antenne 433 MHz Spring Helical Antenna Video
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