Abstract
Elevated-coplanar-waveguide- (ECPW-) fed microstrip antenna with inverted “G” slots in the back conductor is presented. It is modeled and analyzed for the application of multiple frequency bands. The changes in radiation and the transmission characteristics are investigated by the introduction of the slots in two different positions at the ground plane (back conductor). The proposed antenna without slots exhibits a stop band from 2.55 GHz to 4.25 GHz while introducing two slots on the back conductor, two adjacent poles appear at central frequencies of 3.0 GHz and 3.9 GHz, respectively, and the antenna shows the ultra-wideband (UWB) characteristics. The first pole appears at the central frequency of 3.0 GHz and covers the band width of 950 MHz, and the second pole exists at a central frequency of 3.90 GHz covering a bandwidth of 750 MHz. Experimental result shows that impedance bandwidth of 129% (S11<-10 dB) is well achieved when the antenna is excited with both slots. Compared to most of the previously reported ECPW structures, the impedance bandwidth of this antenna is increased and also the size of the antenna becomes smaller and more suitable for many wireless applications like PCS (1850–1990 MHz), WLAN (2.4–2.484 GHz), WiMAX (2.5–2.69 GHz and 5.15–5.85 GHz), and also X-band communication.
Highlights
A considerable amount of researches have been devoted to the development of UWB antenna for its enabling high data transmission rates, low power consumption, and simple hardware configuration in wireless applications like radio frequency identification devices, sensor networks, radar, location tracking system, and so forth
Its commercial applications of the frequency band from 3.1 GHz to 10.6 GHz were approved by the Federal Communications Commission (FCC) in America in 2002 [2, 3]
To compensate the impedance mismatch and additional bandwidth the researchers have already been introduced the concept of defected ground structure (DGS), defected microstrip structure (DMS), and so forth
Summary
A considerable amount of researches have been devoted to the development of UWB antenna for its enabling high data transmission rates, low power consumption, and simple hardware configuration in wireless applications like radio frequency identification devices, sensor networks, radar, location tracking system, and so forth. Recent technological advances and the size reduction of electronic circuits have changed the wireless communications and sensor network design specifications They have exposed the need for electrically small antennas that are efficient and have significant bandwidths. The research in the area of design of compact broadband antenna design for the application of WLAN compatible devices is growing exponentially. For these modern communication applications, size reduction of microstrip patch antenna with wide bandwidth and multiband operation. Few papers have been published in this area [23–31] based on ECPW, but all have insufficient bandwidth or design complicacy In this design, the proposed antenna offers a bandwidth of 8.74 GHz (1.85 GHz to 10.54 GHz) covering.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
