AD250C is a glass-reinforced, PTFE-based composite engineered to deliver a stable dielectric constant, low signal loss, and excellent passive intermodulation (PIM) performance. The woven glass construction enhances circuit processability and supports high-yield PCB fabrication.

AD250C meets the diverse requirements of modern antenna designs. This versatility, combined with precise dielectric control, ensures consistent impedance performance across production runs.

The material is offered with standard electrodeposited (ED) copper or reverse-treated ED copper foil, allowing designers to optimize for reduced circuit loss and improved PIM performance.

As a PTFE-based composite, AD250C exhibits exceptionally low loss—typically below 0.002 at 10 GHz—along with minimal moisture absorption (<0.1%) and high copper peel strength (>10 pli). These characteristics make AD250C laminates a reliable, high-performance solution for antenna applications.

Features and Benefits

• Low loss tangent (<0.002 at 10 GHz) – Delivers excellent circuit performance across all common wireless frequency bands
• Controlled dielectric constant (±0.05) – Ensures repeatable and reliable circuit performance
• Very low PIM (-159 dBc at 30 mil, 1900 MHz) – Enhances antenna performance and minimizes yield loss due to PIM issues
• Excellent dimensional stability – Supports consistent circuit performance and improved manufacturing yields

Typical Applications

• Cellular infrastructure base station antennas
• Automotive telematics antenna systems
• Commercial satellite radio antennas

Company Profile

Founded in 2003, Shenzhen Bicheng Electronics Technology Co., Ltd. is a well-established supplier and exporter of high-frequency PCBs based in Shenzhen, China. With 18 years of industry experience, the company serves global sectors including cellular base station antennas, satellite communications, high-frequency passive components, microstrip and stripline circuits, millimeter-wave equipment, radar systems, and digital RF antennas. The company’s high-frequency PCBs are primarily manufactured using three major high-frequency material brands: Rogers Corporation, Taconic, and Wangling, with dielectric constants ranging from 2.2 to 10.2. Headquartered in the economically vibrant city of Shenzhen, Bicheng PCB operates with a philosophy rooted in serving small and medium-sized enterprises, offering a wide variety of circuit boards to meet diverse market demands.

Main Business & PCB Applications

The company upholds the highest manufacturing standards to deliver products known for exceptional quality, performance, and reliability. In addition to high-frequency PCBs, Bicheng has divisions specializing in FR-4 circuit boards, flexible circuits, and metal-core PCBs, supporting everything from prototyping and small runs to mass production. The company actively develops value-added PCB solutions such as HDI, quick-turn production, impedance control, heavy copper, and backplane boards. This strategic focus enables Bicheng to offer an extended and complementary product range, forming an integrated line that spans from low-end to high-end PCBs. These circuit boards are widely used in home appliances, portable and consumer electronics, medical devices, aerospace, and telecommunications.

Main Material Partners