Wideband multilayer directional coupler with tight coupling and high directivity

Djordjević, A.R.; Napijalo, V.; Olćan, Dragan I.; Zajić, Alenka

doi:10.1002/mop.27051

Cited by 6 publications

(2 citation statements)

References 24 publications

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“…The new structure is based on a four-port coupler, which is traditionally used in microwave designs to reduce reflection issues in signal split. We base our coupler on a recent design [40] that has excellent directivity and frequency characteristics. A simple coupler consists of two TL structures running in parallel close to each other, as shown in Figure 2a.…”

Section: A Unidirectional Transmission Line Ringmentioning

confidence: 99%

Automatic OpenCL work-group size selection for multicore CPUs

Zajić

Prvulovic

2013

Proceedings of the 22nd International Conference on Parallel Architectures and Compilation Techniques

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Growth in core count creates an increasing demand for interconnect bandwidth, driving a change from shared buses to packet-switched on-chip interconnects. However, this increases the latency between cores separated by many links and switches. In this paper, we show that a low-latency unswitched interconnect built with transmission lines can be synergistically used with a high-throughput switched interconnect. First, we design a broadcast ring as a chain of unidirectional transmission line structures with very low latency but limited throughput. Then, we create a new adaptive packet steering policy that judiciously uses the limited throughput of this ring by balancing expected latency benefit and ring utilization. Although the ring uses 1.3% of the on-chip metal area, our experimental results show that, in combination with our steering, it provides an execution time reduction of 12.4% over a mesh-only baseline.

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Section: A Unidirectional Transmission Line Ringmentioning

confidence: 99%

Automatic OpenCL work-group size selection for multicore CPUs

Zajić

Prvulovic

2013

Proceedings of the 22nd International Conference on Parallel Architectures and Compilation Techniques

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“…Characterization techniques for symmetric coupled transmission lines have been a topic of active research for years since the use of differential circuits is notably increasing in microwave technology. This particular case of multiconductor transmission lines is widely used for several applications in the microwave and millimeter-wave frequency bands where devices such as filters [1], power dividers [2], and directional couplers [3] are extensively used. The knowledge of the actual propagation constant of quasi-TEM modes is of great This work is licensed under a Creative Commons Attribution 4.0 License.…”

Section: Introductionmentioning

confidence: 99%