Many antennas depend on the durability and repeatability of the printed-circuit-board (PCB) materials on which they are formed. The type of material has a strong impact on the size and performance possible from an antenna. A printed-circuit antenna is typically fabricated on a PCB material composed of a dielectric layer with copper on one or both sides. For reliable electrical performance, that combination of copper and dielectric must be consistent, over time and over temperature. Understanding some of the key PCB material parameters and how they relate to antenna performance can pay large dividends for those working with PCB-based antennas. Here are some of our newest products and technical resources for antenna designers.
PIM and PCB Antennas: Guide to Circuit Materials for Low PIM Antennas
Passive intermodulation (PIM) can result from many factors in a circuit or system. Even the thickness and dielectric constant (Dk) of a laminate can affect PIM by contributing to the physical dimensions of transmission lines. This can lead to higher current densities in densely spaced circuits. To address the need for low-PIM antennas, the Advanced Connectivity Solutions group developed the RO4500™ & RO4700JXR™ series thermoset laminates and the AD series™ woven-glass,
polytetrafluoroethylene (PTFE)/ceramic antenna circuit materials. With these circuit laminates as starting points, antenna designers can be assured of an opportunity to create antenna designs with the lowest PIM possible. Download the PIM and PCB Antennas Guide.
VIDEO: AD300C™ Antenna Grade Laminates
Our AD300C high frequency circuit materials are featured in this video that highlights topics from datasheet properties and measured results showing insertion loss, dielectric constant, and PIM performance. The information in this video explains why AD300C antenna grade laminates are a popular choice for PCB based antenna applications.
New UL 94 V-0 Circuit Material for Cost Effective, High Performance PCB Antennas and Active Antenna Arrays for 4G, 5G, and IoT
The RO4730G3™ UL 94 V-0 antenna-grade laminates are designed to meet present and future performance requirements in active antenna arrays and small cells, notably in 4G base transceiver stations (BTS) and Internet of Things (IoT) applications as well as emerging 5G wireless systems. These flame-retardant (per UL 94V-0), thermoset laminate materials are an extension of Rogers’ dependable RO4700™ circuit materials, which are a popular choice for base station antennas. RO4730G3 laminates provide the low dielectric constant (Dk) of 3.0 favored by antenna designers, held to a tolerance of ±0.05 when measured at 10 GHz. Download the Antenna Grade Laminates data sheet.