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In this paper, a simple method to estimate the conductive losses in complementary split ring resonators (CSRRs) is proposed. It is based on the measurement of the transmission coefficient (insertion loss) in an embedded microstrip line with the CSRR under consideration etched in the ground plane, beneath the conductor strip. It is assumed that losses are due to the substrate (dielectric losses) and...
This paper presents some sensing strategies for microwave sensors based on symmetry properties and metamaterial-inspired resonators. Symmetry disruption is the key aspect in all the cases. The sensors consist of a transmission line loaded with one or two resonant elements in a symmetric configuration. Two types of sensors are considered: (i) coupling modulation sensors, and (ii) frequency splitting...
4-D Light field information, of which we can extract the target depth information, can be obtained with only one photo using light field camera. The existing target depth information acquisition methods based on light field mostly need huge amounts of photographs and complicated mathematical calculations. To solve these problems, this paper puts forward a light-field-based depth measurement method,...
Large-width multiplier is one of the most important computing units, such as for encrypt chip basing on RSA algorithm. In this paper, a circuit structure which is the optimized multiplier with innovative Booth algorithm is put forward. We proposed an innovative algorithm that can be generalized to N-bit multiplier design. Meanwhile, comparing to the original Booth multiplier, it speeds up the computation...
This paper is focused on the study of splitter/combiner microstrip sections where each branch is loaded with a complementary split ring resonator (CSRR). If the structure is symmetric with regard to the axial plane, only one transmission zero (notch) in the transmission coefficient arises. Conversely, two notches appear if symmetry is disrupted. A model that combines lumped elements (describing the...
This paper analyzes and compares two types of transmission line metamaterials: (i) coplanar waveguide (CPW) transmission lines loaded with pairs of magnetically coupled split ring resonators (SRRs), and (ii) microstrip lines loaded with pairs of electrically coupled complementary split ring resonators (CSRRs). Both structures are described by lumped element equivalent circuit models rather different...
Microstrip lines loaded with pairs of electrically coupled complementary split ring resonators (CSRRs) are studied for the first time. For the general asymmetric case, where the line is loaded with different CSRRs at each stage (pair), the structure exhibits negative effective permittivity in the vicinity of two different frequencies, i.e., it behaves as a dual-band epsilon-negative (ENG) transmission...
This paper is focused on the analysis and modeling of transmission lines loaded with pairs of shunt-connected stepped impedance resonators (SIRs), and their application to differential sensors for dielectric characterization, and for diagnosis and quality control of material samples by comparison to a reference. It is demonstrated that by placing the SIR junctions in the same position of the line,...
The purpose of multispectral and panchromatic images' fusion is to extract the high-resolution spatial information of the panchromatic image and the high-resolution spectral information of the multispectral image. Image transforms such as Intensity-Hue-Saturation (IHS) or Principal Component Analysis (PCA) transform are widely used. These methods create fusion image with higher spatial resolution...
As an photoelectric remote sensing device, the full frame camera is widely used in aviation photography, which can get an image in one exposure time but has the disadvantage of image smearing caused by platform motion during exposing. A mechanical lens shutter is implemented in camera's system to control the exposure time precisely. In this paper, the designing principle of a lens shutter based on...
This paper analyzed various components of integrated positioning LBS mobile terminal based on C8051F340, studied pseudo-range integrated positioning of GPS and GLONASS, deduced the combined observation equations and its solution, then used GPRS technology for transmission. Combining with those methods, we finally realized the integrated positioning LBS mobile terminal and tested it later. Experimental...
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