Wideband Low Error Vector Magnitude (EVM) Direct Conversion Transmitter

Advantages and features:

Broadband direct conversion transmitter

500MHz to 4.4GHz RF

Low phase noise

Low error vector magnitude (EVM)

application:

Imaging

Communication

Electronic test and measurement

radar

Communication

Defense electronics

Avionics

Circuit

Circuit functions and advantages:

This circuit is a complete implementation of the analog part of the broadband direct conversion transmitter (analog baseband input, RF output). This circuit supports RF frequencies from 500 MHz to 4.4 GHz by using a phase-locked loop (PLL) and a wideband integrated voltage controlled oscillator (VCO). Harmonic filtering from the PLL local oscillator (LO) ensures excellent quadrature accuracy, sideband suppression, and low EVM. A low noise, low dropout regulator (LDO) ensures that the power management scheme has no adverse effects on phase noise and EVM. This device combination provides industry-leading direct conversion transmitter performance in the 500 MHz to 4.4 GHz frequency range

Galvanized Monopole tower 
Galvanized monopole Towers are used for a variety of communication applications and are ideal for use when zoning is difficult.  Monopoles can also be designed as camouflage poles: pine tree poles, flag poles, palm poles and other stealth towers. Many uses include cellular monopoles, wireless internet monopoles, wifi tower, homeland security monopoles, two-way monopoles, and wind tower monopoles.

1. Based on its shapes, it is generally divided into 5 types: Goblet type, cathead type, cathead type, shaped type and barrel type.
Based on application, it can be divided into: Strain tower, straight line tower, angle tower, transposition tower (tower for transposition of wire phase position), terminal tower and crossing tower, etc.

2. Their structural features are: All kinds of towers are of space truss structures; Bard are mainly composed of single equal angle steel or assembling angle steel; Materials are generally Q235(A3F) and Q345(16Mn); Bars are connected by black bolts with shearing force; Entire tower is composed of angle steels, link plates and bolts; A few components like tower base are assemblies of welded steel plates for convenience of hot galvanizing anti-corrosion, transportation and erection.

3. For steel towers that with height below 60m, shackles are mounted on one of main columns for construction people to climb to work. Our Company is a large scale enterprise specializing in manufacturing of 220KV (330KV) electric power steel tower with advanced manufacturing facility and international top-ranking assembly line.


Monopole Tower

Monopole Tower, Telecommunications Monopole, Steel Monopole Tower, Monopole Transmission Tower,Galvanized Monopole

YIXING FUTAO METAL STRUCTURAL UNIT CO.,LTD( YIXING HONGSHENGYUAN ELECTRIC POWER FACILITIES CO.,LTD.) , https://www.chinasteelpole.com