900 MHz Yagi Antenna Directional Lora Antenna

What is a 900 MHz Yagi Antenna Directional Lora Antenna?

The 900 MHz Yagi Antenna Directional Lora Antenna style CTRF-ANTENNA-YAGI-0900-7619-SMA antenna item is a 9 Element Yagi Antenna 13dBi High-gain 900 MHz GSM Yagi Antenna Directional Lora Antenna Yagi-Uda antenna manufactured by C&T RF Antennas Inc.

What is the structure of the Yagi antenna?

Yagi antenna is composed of an active oscillator, a reflector, and a number of leaders. Which is slightly longer than the active oscillator reflector to reflect the energy role, and slightly shorter than the active oscillator to guide the role of energy.

The active oscillator on both sides of the reflector and the guide make the original two-way radiation into one-way radiation, in order to improve the gain of the antenna. Yagi antenna is simple in structure, convenient in feeding, with high gain, and widely used in the VHF/UHF band.

Yagi directional antenna active element size selection guide

The basic requirement for the active element is to be able to have a good match with the feed line, for this reason, the active element should be designed for resonant length, and transform its input impedance to a value equal to or close to the feed line characteristic impedance.

Yagi directional antenna is generally fed with a coaxial cable. When the active oscillator uses a half-wave symmetric oscillator, due to the influence of the passive oscillator, its input impedance value is low, so it is necessary to try to improve the active oscillator input resistance, the common method is to switch to the folded oscillator.

Proper selection of the length of the folded vibrator, the diameter ratio of the two conductors, and their spacing can effectively improve the input resistance of the active oscillator, and combined with the adjustment of the reflector and the size of several nearby leading elements, you can obtain a satisfactory standing wave ratio.

Secondly, due to the folded oscillator equivalent radius thickening, the spread of impedance bandwidth is also beneficial. Of course, the active oscillator can also be used in the form of an additional matcher symmetrical oscillator.

On the feed to the antenna, if the use of coaxial cable feed, in order to ensure the symmetry of the antenna, it is necessary to join the feed line and antenna interface balance – unbalance converter, such as U-shaped tube matcher, T matching and wide-band transmission transformer, etc.

The 9 Element 13dBi High-gain 900 MHz Yagi Antenna Directional Lora Antenna is supplied by C&T RF Antennas Inc, the professional Yagi-Uda antenna and directional Yagi antenna manufacturer in China.

We provide the RF wireless antenna with many antenna types such as Through-hole Mount Antennas, Magnetic Mount Antennas, Rubber Duck Antennas, Fiberglass Antennas, PCB Antennas, FPC Antennas, Spring Coil Antennas, Sector Antennas, Yagi antennas, etc.

C&T RF Antennas Inc provides the indoor-outdoor antenna with many antenna frequencies such as Cellular, 6G, 5G, 4G, 3G, NB-IoT, GNSS, GPS, Dual-band Wifi, 5.8 GHz, 2.4 GHz, 169MHz, 230MHz, 315MHz, 433MHz, 868MHz, 915MHz LoRa, UWB, RFID, ADS-B, etc.

Contact us for more 900 MHz Yagi Antenna Directional Lora Antenna details such as the 900 MHz Yagi Antenna Directional Lora Antenna datasheet, 900 MHz Yagi Antenna Directional Lora Antenna pricing, and 900 MHz Yagi Antenna Directional Lora Antenna inventory, or other Yagi antenna styles.

900 MHz Yagi Antenna Directional Lora Antenna Specifications

900 MHz Yagi Antenna Directional Lora Antenna Features