Onomatopoeia, or sound-imitation words (SIWs) are important in informing sound events in human-computer communication. One problem is listener-dependency in recognizing environmental sounds by means of SIWs, that is, different listener hears the same environmental sound as a different SIW even under the same condition. Therefore, the use of usual Japanese phonemes is not adequate to express SIW...

This paper overviews the state-of-the-art of substrate integrated waveguide (SIW) techniques in the design and realization of innovative low-cost, low-profile and low-loss (L3) millimeter-wave antenna elements, feeding networks and arrays for various wireless applications. Novel classes of multilayered antenna structures and systems are proposed and studied to exploit the vertical dimension of ...

This paper introduces a novel design of Butler matrix in substrate integrated waveguide (SIW) technology with wide frequency band characteristics. Butler matrices are particularly useful in advanced antenna design and characteristics such as wideband operation, power handling, manufacturing, integration, cost, etc. are typical issues to be addressed in many applications. The proposed planar 4 ×...

This paper presents a high-performance, low-complexity, quasi-distributed dynamic spectrum management (DSM) algorithm suitable for DSL systems. We analytically demonstrate that the rate degradation of the distributed iterative waterfilling (IW) algorithm in near-far scenarios is caused by the insufficient utilization of all available frequency and power resources due to its nature of noncoopera...

A new type of spoof surface plasmon polaritons (SSPPs) developed from conventional substrate integrated waveguide (SIW) using ring slots and vias is proposed in this paper. The asymptotic frequency lower cutoff the SSPP structure can be easily tuned by changing width SIW walls radius slot, respectively. trapezoidal microstrip line a small slot are used for efficient mode conversion to smoothly ...

A novel dual band, highly sensitive Substrate Integrated Waveguide (SIW) sensor for permittivity measurements is presented. pair of modified Complementary Split Ring Resonators (CSRRs) etched on SIW surface. CSRRs are located in the center SIW, where electric field distribution high so that coupling be maximized. The between and as well adjacent results two notches transmission coefficient. The...

Substrate-integrated waveguide (SIW) is a modern day (21st century) transmission line that has recently been developed. This technology introduced new possibilities to the design of efficient circuits and components operating in radio frequency (RF) microwave spectrum. Microstrip are very good for low applications but ineffective at extreme frequencies, involve rigorous fabrication concessions ...

Taking the advantage of common waveguide filters and SIW technology, a new filter structure is proposed. This structure can be implemented for various microwave frequencies by choosing appropriate low loss substrates. An example of suggested structure in Ku band is presented in this paper. The filter is designed and simulated on a low loss RT/Duroid 5880 laminate. The resulted filter has a Qual...