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The motif of this paper to research analysis of cascading test fixture (Module Compliance Board Host Compliance Board and SFP+ connector) for SFP+ cable. Analysis of cascading test fixture (Module Compliance Board? Host Compliance Board and SFP+ connector) for SFP+ cable simulated by EM simulator and using vector network analyzer to validate frequency domain and time domain results. From the simulation...
In this paper, we use a periodic structure to produce a Maxwell's fisheye lens and investigate some important information such as power, efficiency, etc. At Chapter 1, we describe some introduction about the surface plasmon polariton (SPP), frequency selective surface (FSS), concentration power by using lens. At Chapter 2, we describe some theorem about we need to use like Transmission line modal,...
We present a surface constitutes arrays of periodic patches, which may serve as the metasurface to synthesize the Luneburg lens. The main purpose is by using different sizes of patches to achieve different refractive index at each stage, and get the proper function of Luneburg lens.
This paper presents a compact-size co-planar waveguide (CPW) -fed antenna for ultrawideband (UWB) applications. The feeding structure of the proposed antenna is a fork-shaped type, and the ground plane is an open-loop type made of two L-shaped extended ground plane stubs. The size of this proposed antenna is only 26 × 20 × 0.8 mm3. The simulated 10-dB return loss bandwidth is 0.17 GHz (3.1-17.0 GHz),...
This paper investigates a wideband dual-polarized rectangular dielectric resonator antenna (DRA). The DRA is simultaneously excited in its fundamental TE111 mode and higher-order TE113 mode to widen the bandwidth. Their degenerate fields are also excited to obtain a polarization diversity antenna. An overlapped bandwidth of 29.6% (2.88-3.88 GHz), antenna gains ranging from 4.8 dBi to 9.9 dBi, and...
Recently, the S-parameter method using a vector network analyzer was proposed whereby the differential input impedance of a balanced-fed antenna were obtained. To improve measurement accuracy of the S-parameter method, the dependence on thickness of the semi-rigid cable used for the measurement jig is obtained from the results of calculations using the FDTD method. Three types of jigs each made from...
In this paper, a compact omnidirectional circularly polarized (CP) cylindrical dielectric resonator antenna (DRA) is presented. The DRA is excited in its TM01δ mode by a probe located at the center, giving linearly polarized (LP) omnidirectional radiation patterns. Four interleaved strips serving as a wave polarizer are placed on the top of the DRA. By tuning the strips, the LP fields can be changed...
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