─ A simple and compact microstrip-fed ultra wideband (UWB) slot antenna with dual band-notch characteristic for UWB applications has been presented. In order to increase the impedance bandwidth of the square slot antenna, we insert a T-shaped slot in the ground plane that with this structure UWB frequency range can be achieved. Additionally, by using a pair of Lshaped slits at the square radiat...

A new compact printed tri-band antenna for WLAN/WiMAX applications is presented. The proposed antenna consists of three inverted L-shaped strips whose geometry looks like a “bent fork”. These strips are attached to the feed line through a horizontal strip. By optimizing the geometries of the inverted L-shaped strips, distinct resonant points can be effectively created for different frequency ba...

A compact microstrip-line-fed antenna designed by inserting two pairs of strips into a rectangular slot for achieving tripleband operation is proposed. The antenna, which occupies a small size of only 40 × 32 × 1.6mm3, utilizes inserted strips to generate dual band-notched characteristics so that three operating bands are able to be achieved, which range from 2.2 to 2.7, 3.07 to 3.86 and 5.13 t...

In this paper, a microstrip-fed hexagonal shape ultra-wideband (UWB) monopole antenna with triple notched bands is presented. The antenna consists of a microstrip feed line, a regular hexagonal shape radiation patch with a complementary split ring resonator (CSRR) and a pair of inverted T-shaped conductor-backed planes embedded in the antenna backside. Notched bands can be easily controlled by ...

In this paper we have presented the use of reconfigurable microstrip patch antenna elements in adaptive arrays. The combination of both reconfigurability and adaptivity in a single array is investigated. As the different standards have different requirements and use different frequency bands mainly around 2.4GHz to 5 GHz, the RF circuits and antennas designed for each system must be able to wor...

A prototype for a dual-band metamaterial-inspired antenna is presented. The antenna consists of a dual-band dipole placed between two meta-surfaces, which are tuned to operate at both dipole bands. In this way, the dipole radiates at a different half-space at each frequency band. Antenna gains as high as 6.1dB and 7.6dB have been measured at the lowand high-frequency bands, respectively, while ...

This paper proposes a monopole antenna with photonic crystal structure as substrate for ultrawide band application with dual band notched characteristics.Improvements in all the main parameters of the antenna were obtained when using a PC.The measured results reveal that the presented dual band-notch monopole antenna offers a very wide bandwidth with two notched bands, covering 3.5/5.5-GHz WiMA...

I have designed a folded-shot fractal antenna with single iteration with help of Koch iteration technique to achieve multiband properties. Antenna simulation tool Ansoft HFSS is used to design and simulate. Antenna proposed by me work with six frequency bands with acceptable return loss. Implementation of Folded slot antenna is done over a single slot antenna. Proposed design of antenna offers ...

A compact triple band rectangular microstrip antenna (RMSA) for WLAN / WiMAX applications is proposed. The antenna operates at three resonance frequencies 2.4/3.2/3.5GHz Covering the WLAN/ WiMAX operating bands, IEEE WLAN protocol 802.11 b/g employs 2.4 GHz and WiMAX 3.5 GHz. The antenna was studied by means of simulations as well as practical measurements. The Triple band characteristics of an...