BBTLine Layout Mods Push High Corner Frequencies to 7 GHz

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RF Splitter Combiner 4-Way BroadBand 500 MHz to 7 GHz Surface Mount SMT - RF Cafe

BBTLine 2-Way Divider/Combiner - RF Cafe

2-Way Divider/Combiner | S3P Download

BBTLine 4-Way Divider/Combiner (version 1) - RF Cafe

4-Way Divider/Combiner (version 1) | S5P Download

BBTLine 4-Way Divider/Combiner (version 2) - RF Cafe

4-Way Divider/Combiner (version 2) | S5P Download

Kirkland, Washington - BBTLine (BroadBand Transmission Line) has announced a significant substrate layout modification that pushes the performance of their 2- and 4-way power dividers / combiners out to a full 7 GHz. Performance plots of the new configurations are shown below. BBTLine's unique patented (U.S. Patent 9,570,792) design allows for more compact devices while maintaining low insertion loss, excellent return loss and excellent amplitude and phase balance. S-parameter (S2P) files can be downloaded.

RF Splitter Combiner 4-Way BroadBand 500 MHz to 7 GHz Surface Mount SMT - RF CafeAlthough there are endless RF power splitters / combiners to choose from on the market, once you start narrowing the search criteria down to 1) Broadband, 2) Surface Mount, and 3) Higher RF Power Rating characteristics, the number of choices is reduced considerably. BBTLine's line of surface-mount splitters / combiners addresses this market deficiency.

Consulting Services

Specializing in RF Hardware Design / Prototyping / Simulation / Measurement / Troubleshooting
With over 25 years of RF Hardware Design Experience (DC to 85 GHz), BBTLine, LLC offers you several avenues for your RF Hardware Development needs BBTLine Offers You Expertise In the Following Areas:

  • RF Hardware Design
  • RF Prototyping
  • RF Simulation
  • RF Board Layout
  • RF Measurement and Testing
  • RF System Analysis (Cascaded Gain, NF, IP3, Mixing, Compression, Spurious, Isolation)
  • Single-Ended Frequency Domain and Differential Time Domain (Eye Diagram, Jitter) System Analysis And Design
  • All-around RF Module Design (PCB layout, RF Dielectrics, Mechanical, RF Gasketing, Isolation, Thermal, Tlines, RF Connectors)
  • One-on-one On-Site (or Remote) Training/Tutorials for High-End Simulators such as Keysight ADS, EMPro, CST and Ansys HFSS
  • Temporary (Remote and/or On-Site) RF Engineering Support..."RF Engineer For Hire"...To Satisfy Critical Troubleshooting, Testing And/Or Simulation Needs (Near or Far-Term)
  • RF Connector Launch Design (SMP, SMPM, SMA, Surface and Edge Launch) to 50 GHz
  • Extensive High Isolation (> 150 dB) RF Module Design
  • RF Component Selection To meet Overall RF RX/TX Design Goals

About BBTLine

BBTLine LLC was founded in 2014 to exploit the many benefits of a patented technique for manufacturing multi-octave, small-sized, low return loss, phase and amplitude balanced RF and microwave power combiners / splitters that avoids some of the deficiencies of traditional Wilkinson-style designs.

Contact Information

Mark Derbyshire
10907 NE 133 Street
Kirkland, WA  98034
Phone: 425-273-3712



Posted October 5, 2017