This paper proposes a parallel coupled microstrip bandpass filter (BPF) with ring Electromagnetic Bandgap (EBG) cells on the middle layer for spurious suppression. The ring EBG cells of the middle layer add a good stopband-rejection mode to the second harmonics of the parallel coupled microstrip BPF with suppression of over −50 dB, without affecting the center frequency and insertion loss of th...

An electromagnetic band gap (EBG) waveguide using holes drilled in a dielectric substrate is investigated in this paper. A broadbanding technique is suggested and implemented through a detailed study of the modal behaviour of the guiding structure. The stop band of the EBG waveguide was adjusted by changing the width of the waveguide to increase its bandwidth. It is shown that the propagating m...

A uniplanar, compact electromagnetic band-gap (UC-EBG) structure based on modified semi-Spidron fractal and meander-line strip (SFM-EBG) patterning is proposed. The semi-Spidron frac-tal geometry significantly increases the equivalent capacitance, whereas meander-line strips increase the equivalent inductance; as a result, the proposed design can be used to successfully miniaturize an EBG struc...

This paper presents the bandwidth and gain enhancement of microstrip patch antenna using EBG for X band (10 Ghz) application. The surface waves must be suppressed to increase the bandwidth and gain by using EBG. By using EBG the stop band characteristics is created over certain frequency and that has been adapted to suppress the surface wave and to enhance the gain and bandwidth of the antenna ...

Several THz electromagnetic band gap (EBG) structures are investigated and demonstrated. Various design, fabrication, and characterization methods and techniques are utilized and compared. These THz EBG structures may enable future high performance EBG based THz components. VC 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52: 678–686, 2010; Published online in Wiley InterScience (www....

This paper presents an overview of the various applications of planar Frequency Selective Surfaces (FSS) to the synthesis of Electromagnetic Bandgap (EBG) structures that act as metamaterials, such as Artificial Magnetic Conductors (AMCs). Over the past few years, many designs such as singleand dual-band AMC surfaces, tunable AMC surfaces, angularly stable AMC surfaces, ultra-thin EBG absorbers...

This paper presents the switched-beam slot antenna over the electromagnetic band-gap (EBG) reflector. This antenna is composed of two slot elements fed with phase difference and the EBG reflector, which is applied in order to realize the low profile structure. The radiation characteristics of this antenna are calculated using the FDTD method. The calculated results show that the antenna height ...