Broadband design can't be satisfied? Let's take a look at this 4G small base station with LDMOS amplifier

As people demand higher data rates, the demand for wireless communication system bandwidth is gradually increasing, and at the same time, the further sustainable development of communication technology is promoted. The launch of 2G, 3G, and 4G technologies has enabled the mobile service to gradually transition from a single form to a multi-service that can simultaneously support voice, data, and video. At present, with the vigorous development of the 4G market, China Mobile, China Telecom and China Unicom have all obtained 4G licenses. The frequency bands obtained are as follows:

Table 1: Distribution of 4G license plate frequency of each operator

As can be seen from the above table, the frequency range of 4G covers approximately the frequency from 1700 to 2700 MHz, and the frequency span of about 1 GHz. This poses a serious challenge for macro base station/small base station manufacturers, especially R&D personnel, using traditional solutions, mainly in the difficulty of development, cycle, device portability, product size, maintainability, material stocking , inventory and so on.

In response to this type of problem, internationally renowned semiconductor manufacturer Infineon Technologies has launched a new generation of LDMOS power amplifier products: PTFC270101. It has wide frequency characteristics, can cover the frequency range of 900-2700MHz, and good electrical characteristics, which can solve this problem well. It is the first stage amplifier of the macro base station power amplifier module and the last stage amplifier of the small base station power amplifier module. Second choice, especially for small base station products with three carrier requirements. Shiqiang has already represented this product.

The basic characteristics of the LDMOS power amplifier PTFC270101 are as follows:

It is packaged in a plastic package with the package code PG-SON-10. The package form and dimensions are as follows:

Figure 1: PTFC270101 package form and size chart

In the test environment, VDD = 28 V, IDQ = 120 mA, POUT = 1.3 W (average power), Æ’1 = 2650 MHz, Æ’2 = 2690 MHz, the test signal is 3GPP WCDMA signal, dual carrier, channel bandwidth is 3.84 MHz, 8 dB PAR @ 0.01% CCDF case:

Its gain and efficiency characteristics are as follows:

Figure 2: PTFC270101 gain and efficiency characteristics

Its linear characteristics are as follows:

Figure 3: Linear characteristics of PTFC270101

About Shiqiang

Founded in 1993, Shiqiang Advanced includes Anwara, Renesas Electronics, AARONIA AG, Silicon Labs, Rogers, Melexis, Infineon, Acam, Alliance, Littelfuse, EPSON, Vincotech, Wima, New Battery, SMI, TT Electronics, Ricoh Microelectronics, Keysight and other world-renowned semiconductor companies and test and measurement equipment companies in the Greater China region, is also an important supplier of many electronics manufacturing and R&D companies. In addition to covering the traditional industrial, communications, consumer and automotive electronics sectors, the emerging business of the Internet of Things, Internet of Vehicles, Wearables, and Smart Mobile Terminals brings more cutting-edge technologies and innovative products.

As a technology-driven distribution company, Shiqiang also has a mature technical support team and system service processes, providing customers with new product introduction, rapid sample, application consulting, solution and software design, development environment, after-sales and logistics. Professional services. Shiqiang has 17 offices and subsidiaries Xinhualong in the country, with 650 employees.

On January 11, 2016, the launch of Shiqiang Component E-commerce 020 intelligent hardware innovation service platform will provide engineers with comprehensive coverage of technical support and quality service experience.

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