Acompact, planar, dual-band meander-line monopole antenna that operates in frequency range of 2.400-2.480, 5.150-5.350, and 5.725-5.825 GHz was designed, fabricated, and characterized. Theoretical analysis based on the antenna theory was conducted to obtain the optimum characteristics.A 3-D electromagnetic finite-element solver, high frequency structure simulator (HFSS), was used in antenna sim...

a new multiple c- slotted microstrip patch antenna is proposed.  a patch antenna is a wide-beam narrowband antenna. microstrip patch antenna consist of a very thin metallic strip (patch) placed a small fraction of a wavelength above a ground plane. the patch can be designed in any possible shape and normally made by conducting material copper or gold. this paper presents design of a c- slotted ...

An analysis of microstrip line fed antennas has been presented theoretically using circuit theory concept. The theoretical investigations of F-shape antenna parameters such as return loss, VSWR, gain and efficiency have been calculated. It is found that antenna resonate at 2.4 and 5.2 GHz for lower and upper resonance frequencies respectively. The bandwidth of the F-shape antenna at lower reson...

A new generalized transmission-line theory is presented to treat multiconductor as well as antenna systems. Maxwell’s equations are cast into the form of classical telegrapher’s equations. Two quite different examples are calculated to illustrate the wide use of this theory.

We develop a theory for waveform-diverse moving-target synthetic-aperture radar in the case in which a single moving antenna is used both on transmission and on reception. We assume that the targets (scattering objects) are moving linearly, but we allow an arbitrary, known flight path for the antenna and allow it to transmit a sequence of arbitrary, known waveforms. A formula for phasespace (po...

Antenna research has progressed significantly over the past decade, however to conduct any research, there needs to be one common resource: an antenna test range. This is because of the need to experiment on physical antennas. Numerically analyzing antennas is near impossible with the complex antennas that are prevalent today. Such systems that are offered commercially are very expensive and ma...

Optical antennas interface an object with optical radiation and boost the absorption and emission of light by the objects through the antenna modes. It has been much desired to enhance both excitation and emission processes of the quantum emitters as well as to interface multiwavelength channels for many nano-optical applications. Here we report the experimental implementation of an optical ant...

OF THE DISSERTATION Darkfield Imaging with a Plasmonic Focusing Lens: Antenna Theory for Near-field Scanning Optical Microscopes