Name: 4G LTE Antenna PCB Trace Antenna Design | C&T RF Antennas Inc | Antenna Manufacturer
SKU: CTRF-ANTENNA-PCB-7027-6016-UFL100

Description

What is a 4G LTE Antenna PCB Trace Antenna?

The 4G LTE Antenna PCB Trace Antenna CTRF-ANTENNA-PCB-7027-6016-UFL100 is an internal PCB antenna with a 4/6dBi Lora, GSM, NB-IoT, PCS, GPRS, CDMA, UMTS, 3G, 4G Ipex antenna manufactured by C&T RF Antennas Inc for internal network applications.

The 4G LTE Antenna PCB Trace Antenna has a 5dBi high-gain 4G internal antenna 60x16mm PCB size, Ipex connector, 100mm length antenna cable extension, self-adhesive mount, 4G LTE Antenna PCB antenna for 4G wireless communications.

What is the LTE FDD system?

FDD system means that the system uses different frequencies for transmitting and receiving data, and there is the duplex interval between uplink and downlink frequencies, such as GSM, CDMA, WCDMA system is a typical FDD system;

Time division duplex system means that the system uses the same frequency band for transmitting and receiving, and the uplink and downlink data are staggered in time, and the uplink and downlink data can be effectively avoided by sending uplink and downlink data in different time slots.

For example, TD-SCDMA is a TDD system.

(1) When using TDD technology, as long as the upstream and downstream time interval between the base station and mobile station is not large, less than the channel coherence time, it is relatively simple to estimate the channel characteristics based on each other’s signals.

For the general FDD technology, the upstream and downstream frequency interval is much larger than the channel coherence bandwidth, so it is almost impossible to use the uplink signal to estimate the downlink and the downlink signal to estimate the uplink;

This feature makes the TDD method of mobile communication system has obvious advantages in power control and the use of smart antenna technology.

But also because of this, the coverage radius of the TDD system is smaller, due to the upstream and downstream time intervals. The coverage radius of the base station is obviously smaller than that of the FDD base station.

Otherwise, the user signals at the edge of the cell will not be synchronized when they reach the base station.

(2) TDD technology can flexibly set the uplink and downlink transition time, which is used to realize asymmetric uplink and downlink service bandwidth and is conducive to the realization of Internet service with obvious uplink and downlink asymmetry.

However, the setting of this transition time must be coordinated with the adjacent base stations.

(3) Compared with FDD, TDD can use fragmented frequency bands, because the uplink and downlink are differentiated by time, and it is not necessary to require a band with the symmetric competition.

(4) TDD technology does not require transceiver isolators, only a switch is required.

(5 ) mobile station movement speed is limited. In the high-speed movement. Doppler effect will cause fast Fading, the higher the speed, the higher the fading conversion frequency, the deeper the fading depth, so the mobile speed must be required not too high.

For example, in the TD-SCDMA system using TDD, the fading speed must not be too high. For example, in the TD-SCDMA system using TDD, the maximum mobile speed of TDD can reach 250km/h when the data rate is 144kb/s based on the current chip processing speed and algorithm.

There is still a certain gap. – The general TDD mobile station can only reach half of the FDD mobile station mobile speed or even lower.

(6) transmitting power is limited. If TDD wants to send the same amount of data as FDD, but the transmitting time is only about half of FDD, which requires TDD’s transmitting power to be large. Of course, it also requires a more complex network This requires more complex network planning and optimization techniques.

The4G LTE Antenna PCB Trace Antenna is produced by C&T RF Antennas Inc, the internal & external 4G LTE antenna supplier in China.

We provide the antennas with many antenna radio frequencies such as 169MHz, 230MHz, 315MHz, 433MHz, 868MHz, 915MHz, Lora, NB-IoT, GSM, Wifi 2.4GHz, 5.8GHz, 2G 3G 4G LTE, GPS, 5G NR, etc.

C&T RF Antennas Inc provides the Omnidirectional antenna LTE 4G antenna with many antenna types such as Dipole Antennas, Whip Antennas, Marine Antennas, Router Antennas, MIMO Antennas, PCB Antennas, FPC Antennas, Spring Antennas, etc.

Contact us for the 4G LTE Antenna PCB Trace Antenna datasheet, 4G LTE Antenna PCB Trace Antenna pricing, 4G LTE Antenna PCB Trace Antenna inventory, or the other 4G LTE Antenna PCB styles.