Built-in NB-IoT 4G 3G GSM PCB Antenna

What is Built-in NB-IoT 4G 3G GSM PCB Antenna?

The Built-in NB-IoT 4G 3G GSM PCB Antenna CTRF-ANTENNA-PCB-7027-7505-IPEX is an internal antenna printed circuit board antenna 2G 3G 4G embedded PCB antenna manufactured by C&T RF Antennas Inc for GSM, LTE, NB-IoT cellular networks data wireless transmission.

The Built-in NB-IoT 4G GSM 3G PCB Antenna has the full 4G LTE frequency covering GSM 850/900/1800/1900 MHz, NB-IoT 700/800/1800/2100 MHz, 3G 806~960MHz, 1710~1885MHz, 2500~2690MHz, 4G LTE 698~960MHz, 1710~2700MHz.

The Built-in NB-IoT 4G 3G GSM PCB Antenna Indoor Cellular PCB Antenna for Wireless 4G 3G GSM GPRS Module in Electronics.

The principle of GSM antenna

When the electrical energy is applied to the parallel resonant network, the parallel resonant network will power the power, and the frequency f is consistent with the electromagnetic wave frequency, and the generation is relatively larger.

The antenna is to uses such electrical principles, in order to better transmit and receive electromagnetic waves, the two plates in the parallel resonant circuit are opened, and the inductance is the vibrator.

Capacitance is achieved by distribution because China’s global passband and Europe are consistent, EGSM (low-increasing 880 ~ 915 MHz and 925 ~ 960 MHz) plus DCS (send 1 710 ~ 1 785 MHz, 1805 ~ 1 885 MHz ), Always requires DualBand (880 ~ 960 MHz, 1 710 ~ 1 880 MHz).

The inductance is a coil having two densities to meet the needs of the two band frequencies.

If it is a three-frequency antenna, it is only necessary to expand on the DCS band due to the PCS band and the DCS band. When adjusting an antenna’s electrical performance, a finalized device (all other components will no longer change) the production of antenna test tool, and 1 steel pipeline is attached to the site of its antenna connection to install the SMA head.

By transmitting the vector network analyzer Agilent 8753 of the single-port S11 parameter to display the S11 characteristics of the antenna in two frequency bands, it should be less than -10 dB within the useful frequency band, and there should be no metal reflection surface around the test, some manufacturers EGSM band Less than -10 dB, the minimum requirement should be less than -8 dB.

If the S11 characteristics are not met, the S11 parameter characteristics must be met by changing the length of the coil and the density and the mobile phone’s internal PCB board matching network.

After the parameter reaches the standard, the coil is fixed, and taken into the length and density of the coil, are so that the passive device parameters of the matching network can be used to match the network to match the internal PCB board matching network.

S11 has a corresponding conversion relationship with VSWR. After adjusting S11, it is necessary to measure its gain and direction, which requires testing, drawing the graphics, and re-converting the average gain, close to 0 dB, in 3D or 2DChamber.

However, the actual cannot be done, and generally require that the EGSM band is not less than -1 dB, and the DCS band is not less than -2 dB.

The built-in antenna is lower as -4 dB, and the SAR test is also standard, which requires the national SAR laboratory test (the laboratory must have international certification qualifications) The country has not been mandatory.

C&T RF Antennas Inc is a professional indoor-outdoor cellular wireless antenna manufacturer in China, that supplies High-performance Built-in NB-IoT 4G 3G GSM PCB Antennas.

We provide the IoT & M2M antenna with many different 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 internal-external antenna with many frequency bands 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.

C&T RF Antennas Inc provides single-band, dual-band, and multi-band antennas such as 3in1 combination antennas 4G/GPS/Wifi antennas, 2in1 4G/GPS antennas, GSM/GPS antennas, 4G/Wifi antennas, GPS/Wifi antennas, etc. for Wi-Fi And Bluetooth, GPS And GNSS, LoRa And ISM, IoT, And M2M applications.

Contact us for more details on the High-performance Built-in NB-IoT 4G 3G GSM Cellular PCB Antenna such as datasheet, NB-IoT 4G 3G GSM Cellular PCB Antenna pricing, NB-IoT 4G 3G GSM Cellular PCB Antenna inventory, etc.

Or other NB-IoT 4G 3G GSM Cellular PCB Antenna styles.

Built-in NB-IoT 4G 3G GSM PCB Antenna Specifications

Built-in NB-IoT 4G 3G GSM PCB Antenna design features