Rogers Corporation introduced two new laminate products: AD300D™ and IM Series™, optimized for base station antennas.

The AD300D laminate is a fourth-generation, commercial RF/microwave material that extends the capabilities of the successful AD300™ product grade. The ceramic-filled, glass-reinforced, PTFE based material provides the controlled dielectric constant (2.94±0.05), low loss performance (0.0021 at 10 GHz), very good passive intermodulation response (−159 dBc at 0.03 in. thickness) and good circuit process ability, which are required for mobile infrastructure microstrip antennas. This PTFE composite material combines a cost-effective construction with unique chemistry and processing to offer RF and microwave designers an option for improving electrical and mechanical performance without the additional costs traditionally associated with higher performance material options.

The IM Series high frequency laminates enhance the passive intermodulation (PIM) performance of Rogers AD300D™, AD255C™ and DiClad® 880 antenna grade laminates. The laminates now include the newly developed IM system option, an ultra-smooth (Rq = 0.5 µm by non-contact interferometry method) electrodeposited copper foil option which has excellent adhesion to the substrate materials. The PIM performance of all substrates with the IM cladding has typical values of −166 dBc at 0.03 in. and −165 dBc at −0.6 in. using the Rogers internal test method of two 43 dBm swept tones at 1900 MHz.

These specialty materials are specifically engineered and manufactured to meet the demands of today’s base station antenna markets.