Title :
A dual band polygon shaped CPW-fed planar monopole antenna with circular polarization and isolation enhancement for MIMO aplications
Author :
Haghparast, Amir Hossein ; Dadashzadeh, Gholamreza
Author_Institution :
Electr. & Electron. Eng. Dept., Shahed Univ., Tehran, Iran
Abstract :
In this study, design and characteristics of a circularly-polarized (CP) CPW-fed monopole antenna is presented. This antenna operates in the ISM and WLAN bands. To improve isolation, a new configuration in microstrip antenna arrays is applied. The antenna has a compact aperture size of 20 × 20 mm2 which is simulated on FR4 substrate with dielectric constant of 4.4 and thickness of 1 mm. Results indicate that the return loss of this antenna is lower than -10 dB in 2.2-8.0 GHZ band. In addition, the antenna with a 3-dB axial ratio has the bandwidths of 36% and 17% for lower (2150-3100MHz) and upper (5150-6100 MHz) bands, respectively. The results of this investigation can be used to optimize the design of multiple-input-multiple-output (MIMO) communications.
Keywords :
MIMO communication; UHF antennas; antenna feeds; antenna radiation patterns; aperture antennas; coplanar waveguides; electromagnetic wave polarisation; isolation technology; microstrip antenna arrays; monopole antenna arrays; multifrequency antennas; permittivity; planar antenna arrays; waveguide components; CP; FR4 substrate; ISM band; MIMO aplications; WLAN band; antenna compact aperture size; circular polarization; dielectric constant; dual band polygon shaped CPW-fed planar monopole antenna; frequency 2.2 GHz to 8.0 GHz; frequency 2150 MHz to 3100 MHz; frequency 5150 MHz to 6100 MHz; isolation enhancement; microstrip antenna array; multiple input multiple output communication design; size 1 mm; Antenna measurements; Broadband antennas; MIMO; Microstrip antennas; Polarization; Wireless communication; Circularly polarized antenna; ISM and WLAN bands; MIMO;
Conference_Titel :
Antennas and Propagation (EuCAP), 2015 9th European Conference on
Conference_Location :
Lisbon
