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In this paper, we investigate the study of the sequences generated by maximum-length 90/150 cellular automata(CA) sequences. We propose a method computing the relative phase shifts of all pseudo-noise sequences which have the same characteristic polynomial. As a special case of this method, we give an algorithm to compute relative phase shifts between stages of a CA. This is a very simple and efficient...
We present an bandwidth enhanced tri-band monopole slot antenna on metal housed devices which operates on GSM 850, 900, 1800, 1900 and UMTS band. The slots were place at the corner and the edge of the metal housed device in order to avoid the antenna performance degradation caused by ITO (Indium Tin Oxide) coated on display glass. Due to the location of the slot design and inherency of slot antennas,...
We present an bandwidth enhanced tri-band monopole slot antenna on metal housed devices which operates on GSM 850, 900, 1800, 1900 and UMTS band. The slots were place at the corner and the edge of the metal housed device in order to avoid the antenna performance degradation caused by ITO (Indium Tin Oxide) coated on display glass. Due to the location of the slot design and inherency of slot antennas,...
A compact ESPAR antenna that is composed of 1 active-RF element and 6 parasitic elements surrounding driven element is proposed in this paper. This antenna is operated at 915 MHz and reconfigurable beam patterns that changed not only beam angel but also beam width. Any beam patterns form, it is available to radiate and minimize the return loss by using automatic impedance matching system. The achievable...
We evaluated the flexibility of screen-printed silver (Ag) circuits under various sintering temperatures. The circuits were built on a polyimide (PI) film by a screen printing technique using Ag nanopaste (73 wt%, 24 nm in diameter, Ag nanoparticles). The sintering temperature was raised from 150 to 300°C while the sintering time was fixed at 30 min. The flexibility was measured by two different kinds...
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