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The increasing need for telecommunications, optical telecommunications networks in developed as well developing the functionality of radio waves with light waves in a Radio over Fiber network. On the network needed an antenna to support the process of receivers pick up radio waves then modulated with light waves. Antennas on Radio over Fiber can work at a frequency of 10 GHz WPAN communications. Wireless...
Optical filter is very important components in WDM network. MRR is a basic structure to design the optical filter because of easy to design for improving its performance. This paper discusses an innovative structure of the MRR, which is Polymer Triple Coupler Ring Resonators (PTCRR) for optical filter applications. Values of width between bus and ring and values of radius of the ring in the structure...
Investigations on the electromagnetic coupling effect of rectangular split ring resonators (SRRs) coupled to coplanar waveguide (CPW) are presented. Rectangular SRRs shape alteration and its effect to transmission line performance has been studied by changing its vertical and horizontal 2-d orientation. We observe that the confined magnetic field plays an important role in determining the resonance...
We report current research progress on a metamaterial antenna integrated to an optical modulator for millimeter-wave-photonic links. The metamaterial antenna is composed by an array of electric-LC resonators on a LiNbO3 optical crystal. Large millimeter-wave electric field is induced across the capacitive gaps of the resonators due to free-space millimeter-wave irradiation. Optical modulation through...
In this paper, we present a metamaterial coplanar waveguide (CPW) filter with performance improvement utilizing horizontal rectangular split ring resonators (SRRs). The filter is designed for S-Band frequency operation of 2.3 GHz allowing application in many microwave communication systems. We study S-parameter results and find that improvement of insertion loss and bandwidth can be obtained by making...
Asymmetric Parallel-Cascaded Micro-ring Resonator (APCMR) and Double Ring Resonator (DDR) structures are an innovative form of Optical filter based on Micro-ring Resonator (MRR). In this paper we investigate comparison between APCMR and DRR structures . Vernier effects occur in the structure of DRR. The DRR structure has low crosstalk and large bandwidth than the APCMR structure.
We propose and discuss a compact bandpass filter in coplanar waveguide (CPW) loaded with rectangular split-ring resonators (SRRs). The proposed device is designed on a planar structure where the rectangular SRRs and CPW are arranged in the different side. Basic characteristics of the proposed device such as 2-factor, insertion loss, and out of band rejection are considered for X-Band radar operation...
Energy Detection is a popular technique to detect primary user (PU) in cognitive radio (CR) compared with others. Due to less complexity and easier to be implemented makes energy detector (ED) is a common technique in use for signal detection. This paper studies detection performance of primary signal under Additive White Gaussian Noise (AWGN) with low signal to noise ratio (SNR). The performance...
In this paper, a multi-path optical ring resonator (MpORR) on silicon-on-insolator (SOI) is proposed for sensitivity enhancement in liquid chemical sensing applications. It is designed on Silicon Dioxide (SiO2) substrate and Silicon material as the core of optical waveguides. The proposed multi-path optical ring resonator can be realized with a wide free spectral value (FSR) of 3 THz. Therefore, the...
We propose and present millimeter-wave antennas using metamaterial ELC resonators on electro-optic substrates for wireless millimeter-wave receivers and optical modulators. Analysis for the antenna characteristics of the device are discussed at millimeter-wave frequency of 100GHz.
High sensitivity environmental sensors with a simple and compact structure are required to monitor unwanted pollution such as liquid waste. In this paper an environmental sensor liquid waste using a polymer multi-coupled ring resonator (MCRR) structure is proposed. The proposed structure consists of polymeric materials on silicon substrate. Also discussed the influence of different refractive index...
Regional Integrated Border Surveillance System, is a system that is capable to providing a wide range of data and actual informations. This system is very suitable to support efforts to control the border area by the government. Basically this system is the result of the integration between sub-system monitors. In this research activity has built models of Integrated Surveillance Systems Border Region,...
Feeding electivity was investigated in a non-outbreaking population of the crown-of-thorns starfish Acanthaster planci (L.) from North Sulawesi, Indonesia. A null model-based approach was used to assess the feeding pattern of Acanthaster in relation to the availability of coral prey in the field. Of a total of 70 species of corals recorded as prey, massive species, particularly of Faviidae, tended...
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