1 University of Banjaluka, Faculty of Electrical Engineering, Patre 5, 78000 Banjaluka, Bosnia and Herzegovina, E-mail: nemanjapoprzen@gmail 2 University of Banjaluka, Faculty of Electrical Engineering, Patre 5, 78000 Banjaluka, Bosnia and Herzegovina, E-mail: [email protected] Abstract: This report will describe the theories and techniques for shrinking the size of an antenna through the use of ...

In this paper, we have investigated a printed modified circular disc monopole antenna with cross-shaped slot in radiating patch for UWB applications. The proposed antenna covers the entire UWB band (i.e., 3.1GHz to 10.6GHz) except the frequency band of IEEE 802.11a (i.e., from 5.15GHz to 5.83GHz). This UWB antenna will be of use in environments where IEEE 802.11a WLAN devices are already in ope...

Despite the many advantages of microstrip patch antennas, they do have some considerable drawbacks. One of the main limitations with patch antennas is their inherently narrowband performance due to its resonant nature. With bandwidth as low as a few percent; broadband applications using conventional patch designs are limited. So for the antenna miniaturization and bandwidth improvement H-shaped...

Abstract—In this paper, the design of a multiband antenna for WLAN and WiMAX applications is proposed. The proposed antenna comprises a circular radiating patch with a pair of rectangular slits and an inverted U-shaped slot. A hexagon-shaped slot is cut on the ground plane. By adjusting the inverted U-shaped slot, a pair of rectangular slits, and a hexagon-shaped slot, three distinct resonance ...

Abstract—This paper addresses the design of fractal antennas placed onto dielectric object in the UHF RFID band and introduces a tag antenna configuration of simple geometry having impedance tuning capability. Through the paper, the dimensions of the fractal antenna are optimized to improve the impedance matching with the chip impedance. The tag performance changes are studied when it is placed...

A novel multi-band clover leaf-shaped fractal antenna with integrated filtering to reduce higher order harmonics has been proposed. Existing microstrip antennas endure limited gain, narrow impedance bandwidth, and undesired frequency radiations. The proposed is designated operate simultaneously in following operating bands: 3.35–3.6 GHz for WiMAX, 5.156–5.825 WLAN, 5.7–6.4 Intelligent Transport...

Recently there has been a rapidly growing interest in RFID systems and its applications. Operating frequencies including 125 KHz–134 KHz and 140 KHz–148.5 KHz LF band, 13.56 MHz HF band and 868 MHz–960 MHz UHF band were applied to various supply chains. 433 MHz band was decided for active reader and 2.45 GHz band was applied for WiFi reader. Besides the reader antennas, the requirements of tag ...