The days of constructing bandpass filters from discrete components are pretty much over when it comes to the frequencies involved in modern wireless gear. That’s what makes the video we recently did with Alex Rabinovich from AVX interesting. Alex showed us a bandpass filter characteristic that’s super narrow, and the filter that creates also comes […]
High-impedance laminates help reduce antenna size
Rogers Corporation has introduced MAGTREX 555 Laminates, the first product in a new platform of high-impedance laminates featuring a high permeability and permittivity. These high-impedance laminates enable antenna designers to expand the trade-space of their antenna design enabling up to a factor of six reductions in size with minimal impact on bandwidth, up to a factor of […]
On-chip RF transformers could shrink thanks to rolled-up membrane design
Researchers at the University of Illinois say they have devised more efficient RF transformers by depositing conductors on a membrane that, once complete, rolls up to create a high-turns-ratio transformer. The transformers consist of two sets of rolled-up coils deposited on some kind of SiNx material. Researchers say they’ve used the technique to realize up […]
Bulk acoustic wave filters make life easier for Wi-Fi front-end designers
BAW filters help overcome the biggest challenges facing Wi-Fi front-end designs, including thermal management, interference, and RF linearity. Cees Links |Qorvo Wireless Connectivity Smart homes are getting smarter. So they increasingly make heavy demands on their internet routers, so much so that traffic demands are exceeding the capacity of the single-router model. Retailers and businesses […]
New laminates target base station antenna apps
Rogers Corporation has introduced two new products: AD300D laminates and IM Series laminates. AD300D fourth generation, commercial microwave and RF laminate material extends the capabilities of the successful AD300 product grade. This ceramic-filled, glass-reinforced, PTFE based material provides the controlled dielectric constant (2.94±0.05), low loss performance (0.0021 at 10GHz), very good passive intermodulation response (-159dBc […]
New E and W-Band PIN diode waveguide switches
Fairview Microwave Inc. has released a new line of E and W-band PIN diode waveguide switches. These single-pole single-throw (SPST) and single pole double-throw (SPDT) millimeter-wave waveguide switches offer an ultra-broadband frequency range with fast switching performance. They are ideal for telecommunications, test instrumentation, research and development programs and radar front ends in applications that involve […]
Signal-channel diversity and fading, Part 1: Space Diversity
In the engineering context, the phrase “channel diversity” refers to various techniques for getting a signal from point A to point B. The different approaches to diversity can be used individually or in combination. Q: What are the primary types of channel diversity in use? A: There are two primary types: space (spatial), and frequency. […]
Waveguide electromechanical relay switches span 5.85 GHz to 40 GHz
Fairview Microwave Inc. has introduced 28 new waveguide electromechanical relay switches from 5.85 GHz to 40 GHz that deliver full waveguide performance in C, X, Ku, K and Ka frequency bands. They are ideal for applications that include VSAT, SATCOM, radar, microwave radio, electronic warfare, electronic countermeasures, research and development, space systems and test instrumentation. Fairview’s […]
