Chee Leung Mak

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parametric study of the feeding structure is conducted using FDTD code in order to assess the influence of the dimension of the slope-strip feed line on the antenna performance and to find the optimal impedance bandwidth. In the design process, a rectangular radiating patch with dimensions 25 ϫ 25 mm is chosen. The dimensions of the slope-strip feeding(More)
Noninvasive glucose detections are convenient techniques for the diagnosis of diabetes mellitus, which require high performance glucose sensors. However, conventional electrochemical glucose sensors are not sensitive enough for these applications. Here, highly sensitive glucose sensors are successfully realized based on whole-graphene solution-gated(More)
1 a. A 50 ⍀ coaxial probe centrally feeds the bottom of the strip through an SMA connector, and the gap between the Ž. bottom and the ground plane is h s 1 mm. Figure 1 b provides side-view figures of the monopole antenna with the parasitic planar element. The parasitic element is a square Ž copper plate with dimensions of L = L = t s 48 = 48 = 0.2 3. mm.(More)
observed that the feed parameters have a significant effect on the radiation and reflection characteristics of the microstrip antenna. The proposed feeding technique is very simple, as compared to other methods, and offers an impedance bandwidth of 20%. Experimental study of a microstrip patch antenna with an 1-probe, IEEE Trans Antennas Propagat AP-48(More)
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