Design, Realization and Measurements of Compact Dual-band CPW-fed Patch Antenna for 2.45/5.80 GHz RFID Applications

In this paper, a Coplanar Wave Guide (CPW)-Fed microstrip octagonal patch antenna for RFID Applications is proposed. The studied structure is suitable for 2.45/5.80 GHz applications. The octagonal shape is obtained by making triangular cuts in the four angles of the rectangular microstrip patch antenna; in addition the using of CPW-Fed allows obtaining UWB characteristics in the higher band. The miniaturization in the antenna size for lower band is achieved by introducing an inverted E slot in the radiating element. The proposed antenna is designed on a single and a small substrate board of dimensions 29.5×29.5×1.6 mm3. Moreover the miniaturized antenna has a good impedance matching and an enhanced gain. The simulation analysis was performed using the CADFEKO software, a Method of Moment (MoM) based solver, and a prototype of this antenna was fabricated, good agreement with the simulation providing validation of the design procedure. The measurements are done with ANRITSU MS2026C Vectorial Network Analyzer

A Dual Band Compact PIFA Antenna For Internet Of Things Networks Sigfox, Lorawan And Zigbee

In this paper, a planar inverted-F antenna (PIFA) for Internet Of Things (IOT) networks is studied. The proposed structure covers the 868MHz radio frequency band used by LoRaWAN, Sigfox, Z-Wave and ZigBee in Europe and the 2.4GHz radio frequency band used for Zigbee, Bluetooth and WiFi in all the world. The miniaturization in the antenna size is achieved by introducing a meandered microstrip line and the setup of a short line between the resonant element and the ground plane. The antenna has compact size of 100x40x1.6mm3. The radiation patterns in the operating bandwidth are almost the same as the omnidirectional characteristics. The optimization of the antenna parameters was performed by CADFEKO, a Method of Moment (MoM) based solver

A Compact PIFA Antenna For Internet Of Things Network LORAWAN at 900 Mhz Band

in this paper, a planar inverted-F antenna (PIFA) for LoRaWan network is studied. The proposed structure covers the 868MHz radio frequency band used by LoRaWan in Europe and the 915 MHz radio frequency band used in North America. The miniaturization in the antenna size is achieved by introducing a meandered microstrip line. The setup of the meandered line allows obtaining lower resonant frequency and large -6dB bandwidth and important gain.The antenna has compact size of 40x26x1.6mm3. The radiation patterns in the operating bandwidth are almost the same as the omnidirectional characteristics. The influences of various design parameters are investigated using CADFEKO, a Method of Moment (MoM) based solver

Antennes Planaires Hexagonales Pour Applications Ultra Large Bande

Dans cet article, une étude paramétrique des antennes planaires hexagonales alimentées par une onde coplanaire nous fait découvrir des antennes miniaturisées ayant des bandes passantes très larges appartenant à la bande 3.1-10.6GHz, ce qui les rendent des solutions adéquates pour les applications Ultra Large Bande. Les simulations ont été faites avec CADFEKO un solveur qui se base, entre autres, sur la méthode des moments

Le Comportement Des Antennes Fractales De Types «Courbe De Sierpinski»

Dans cet article, le comportement d’une antenne planaire sous forme fractal de type “courbe de SIERPINSKI” a été étudié. Les résultats nous montrent qu’il y a une relation entre le nombre d’itération et les fréquences de résonances. En effet, plus le nombre d’itération augmente, plus la fréquence de résonance diminue de même pour les gains et les bandes passantes. Les simulations ont été faites par un solveur qui utilise entre autres la Méthode des Moments qui reste la meilleure méthode d’analyse pour les antennes filaires et planaire

Etude Paramétrique Des Antennes Patchs Rectangulaires Alimentées Par Proximité

Dans cet article, le comportement d’une antenne patch rectangulaire alimentée par proximité a été étudié en fonction d’un certain nombre de paramètres à savoir : les permittivités relatives des deux substrats et les dimensions de la ligne d’alimentation. Les résultats nous montrent que le changement de ces paramètres influe sur la fréquence de résonance, le gain et l’adaptation d’impédance. Les simulations ont été faites avec le solveur CADFEK

A NOVEL MINIATURIZED CPW-FED PATCH ANTENNA USING MODIFIED GROUND PLANE FOR WIRELESS APPLICATIONS

In this paper, a Coplanar Wave Guide (CPW)-Fed patch antenna for wireless applications is studied. The proposed structure covers the LTE (Long Term Evolution) (1710–1880 MHz), PCS (1880–1990 MHz), UMTS (1920–2170 MHz) and 5.80 GHz RFID applications. The miniaturization of the antenna size is achieved by introducing one horizontal slot and multiple vertical slots in the ground plane. By setting up slots in the ground plane, the resonant frequency of conventional antenna is shifted back and new -10dB bandwidth is obtained covering the 5.80 GHz RFID (Radio Frequency Identification) application.The antenna has compact size of 40x50x1.6mm3. The radiation patterns in the lower operating bandwidth are almost the same as the omnidirectional characteristics. Moreover the proposed structure has reasonable gain. The influences of various design parameters are investigated using CADFEKO, a Method of Moment (MoM) based solver

The behavior of CPW-Fed microstrip patch antenna with KOCH SNOWFLAKE Fractal Slots

This paper presents the behavior of CPW-Fed microstrip patch antenna with KOCH SNOWFLAKE Fractal slots on the borders of the radiating element and the ground plane. Increasing the number of iterations allows us obtaining lower resonant frequencies. The proposed antenna is an adequate solution for the 900MHz RFID (Radio Frequency Identification), 1710-1880 MHz LTE (Long Term Evolution), 1920-2170 UMTS (Universal Mobile Telecommunications System) and for 3.3 WIMAX (Worldwide Interoperability for Microwave Access) applications. The simulations were performed with FEKO 6.3

UWB Compact Monopole Antenna for LTE, UMTS and WIMAX applications

In this paper, a monopole Antenna is studied for the 1710-1880MHz LTE (Long Term Evolution) Band, for the 1900-2170MHz UMTS (Universal Mobile Telecommunications System) band, and for the 2.3GHz WIMAX (Worldwide Interoperability for Microwave Access) band. For its large size, this antenna is designed to be installed in outdoor and indoor antennas

The behavior of a CPW-Fed miscrostrip hexagonal patch antenna with H-Tree Fractal slots

In this paper, a CPW-Fed microstrip hexagonal patch antenna is designed using the relationship between the design of microstrip circular and hexagonal patch antennas. Also, the setup of H-Tree fractal slot on the resonant element allows obtaining lower resonant frequencies, more -10dB bandwidths, more resonant frequencies and important gains. The simulation was performed with PCCAD 5.0 and FEKO 6.3