Abstract—This paper presents a novel resistively loaded antenna design for microwave breast cancer detection. The antenna is planar and ultra-compact, and can be easily manufactured using PCB technology with embedded thin-film resistive layers. Through numerical simulations, the antenna demonstrates a return loss below −10 dB over a wide frequency range from 2 to 35 GHz. For pulse radiation in ...

We propose a model for scattering in a flat resonator with a thin antenna. The results are applied to rectangular microwave cavities. We compute the resonance spacing distribution and show that it agrees well with experimental data provided the antenna radius is much smaller than wavelengths of the resonance wavefunctions. The aim of the present letter is twofold. First of all, we want to prese...

In this article, a printed triangular-shaped monopole antenna is proposed for emerging ultrawideband application. The proposed antenna uses a triangular radiating patch which is directly fed by a 50-X microstrip feed line. To improve the impedance bandwidth, a round-corner ground plane has been used. To further improve the impedance bandwidth for the entire band, a microstrip transition (near t...

In this paper, the design of a microstrip patch antenna with frequency selective surface (FSS) as a superstrate for WLAN and WiMAX applications proposed antenna is designed by using substrate FR4 having permittivity of 4.4 and air substrate. The characteristics of the antenna are designed and evaluated the performance of modelled antenna using CST Microwave studio. The proposed resonant frequen...

With advancement in communication technology over the past decade, there is an increasing demand for miniaturization, cost effective, multiband and wideband antennas. Fractal antenna designs can support in meeting these requirements. Though these antennas provide several advantages but at the same time miniaturization and performance of the fractal antennas can be further enhanced using reconfi...

In this paper, a novel compact butterfly shaped printed monopole antenna for ultra-wideband (UWB) applications is presented. The proposed antenna is designed with a standard printed circuit board (PCB) process for suitable integration with other microwave components. The antenna prototype is designed then fabricated and tested experimentally. The calculated impedance bandwidth of the proposed a...

This paper presents a rectifying antenna (rectenna) for the harvesting of the microwave energy associated to UHF (UltraHigh Frequency) Radio Frequency IDentification (RFID) systems. The proposed device uses a capacitively loaded T-shaped monopole with a coplanar waveguide feeding line as receiving antenna and a five-stage voltage multiplier as rectifier. Experimental results demonstrating an RF...

A novel miniature antenna based on the fractal Hilbert geometry is presented. The antenna becomes electrically smaller as the fractal iteration increases at a higher rate than that of any other fractal geometry presented until now. Several fractal-shaped Hilbert monopoles have been constructed, measured, and compared with the classical /4 monopole. © 2003 Wiley Periodicals, Inc. Microwave Opt T...

This paper reports the Ku band (1318GHz) response of thick film equilateral triangle microstrip patch antenna to moisture laden sunflower (Helianthus Annuus) seeds using overlay technique. From the frequency response the moisture dependent microwave permittivity has been reported. The thick film patch antenna is sensitive even to ~ 4.25% moisture content in the overlay material. The actual mois...

Microwave-frequency signals are conveyed by using the Microstrip antennas. It is capable of dual and triple frequency operations and has light weight and low cost. Similarly, larger bandwidth can be achieved by Coplanar Waveguide (CPW) structure. Gain can be enhanced using the Defected Ground Structure (DGS). This paper presents the performance comparison of the design of a microstrip antenna a...