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Communication field and active antenna system, Rogers high frequency PCB board how to choose?

Time : 2023-11-21 Hits : 3

For the future field of communication, in-depth analysis of market hotspots and trends, and directly hit the pain points of the board of each frequency band application, bringing a wonderful strategy for antenna board selection and testing. In order to help everyone further understand and master Rogers' advanced technology and products in the field of communication applications, and at the same time, it also lays a good foundation for the company to enhance its competitiveness in the domestic future antenna PCB market.

For more than 180 years, Rogers has been focusing on material process, with more than 60 years of design experience in aerospace and military products, and 30 years of strength accumulation in radar field, which can meet the future technical requirements of 5G and major popular frequency band applications, and bring better products to customers. For the design engineers often encountered high-frequency board selection confusion, Rogers technology gurus share the following PCB selection tips according to the application needs of different frequency bands.

4G applications often require antenna materials with good passive intermodulation performance, as well as low cost, light weight and rigidity. The RO4700JXR series antenna grade laminates introduced by Rogers have excellent mechanical and electrical properties, light weight, and low PIM value; and the coefficient of thermal expansion (CTE) in the X and Y axes is similar to that of copper foil, which supports multilayer board lamination, and is particularly suitable for base stations, RFID, AAS, and other antenna systems that require amplifiers. It bridges the gap of multilayer antennas due to the difficulty and high cost of PFTE material for multilayer board processing.

6G to 40G band applications pay more attention to the loss and passive intermodulation of two indicators, commonly used multilayer board. For example, for MAX MIMO applications, Rogers recommends RO3003PTFE ceramic, a low-loss PTFE material with a dielectric constant of 3.0. Of course, 28G to 30G automotive radar applications are no exception, favoring low insertion loss boards, of which thermoset RO4000 series materials have been used successfully.

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RO4000 material has microwave RF circuits, matching networks and specific impedance transmission line designers need the characteristics of the dielectric constant between 2.55 to 6.15, and comply with the UL 94V-0 fire-rated version, to achieve the cost and RF / microwave performance optimization.

And more than 60G antenna applications must consider the choice of copper foil, calendered copper is preferred; in the sheet selection requirements of low loss, the lower the better, to PTFE sheet is preferred, such as random fiberglass support DiClad 880 laminates, or added ceramic filler PTFE composite material RO3003 series; but DiClad 880 and other thermosetting resin materials due to the However, DiClad 880 and other thermosetting resin materials are not suitable for multilayer design due to the large expansion and contraction value of random glass fibers, whereas the RO3003 series is on the contrary and is also suitable for 80G applications.

When the application frequency band is increased to more than 100G, Rogers technical experts pointed out that: "When conducting high frequency testing, it is important to pay attention to the impedance matching of the signal injection portion, because any impedance reflection on the signal line will seriously affect the results of the high frequency test; and it is best to select the connector within the specified frequency band, and do a good job in the details of the circuit test, including the hole spacing, because Negligence in these matters can easily cause wrong measurement results."

Rogers as a global leader in the field of high-frequency sheet has been ready to go, with years of antenna materials manufacturing process and "military to civilian use" of advanced technology advantages, to bring a more comprehensive, higher performance material solutions, inviting you to explore the future field of communications, and in the new era of mobile communications to take the first business opportunities!

We are a professional 2-36 layer high frequency PCB circuit board manufacturers, can be expedited production of high frequency PCB boards, mixed pressure high-frequency boards, special circuit boards, microwave RF boards, microwave antenna boards and other products, standing: Rogers RO3533, RO4350, RO4003, RO3003, RO3006, RT5880, and other board models. Rogers high frequency boards can be processed and produced on demand with stable delivery.


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