This paper covers two aspects of Microstrip antenna designs. The first is the analysis and design of single element rectangular Microstrip antenna which operates at the centre frequency of 2. 4 GHz. The second aspect is the design of dual band rectangular microstrip antenna which operates at 2. 4 GHz and 3. 6 GHz used in 802. 11b/g/n and 802. 11y WLAN channels respectively. Both antennas are mo...

The design of a dual band operational compact antenna is investigated in this paper for RFID handheld reader application. The dual frequency operation of the antenna is achieved by using a U-shaped slot on the patch and a L-shaped slot in the ground plane. The shorted wall connecting the patch and the ground plane plays a vital role to make it compact. The overall dimension of the patch is 20×3...

This paper presents a new dual-band, dual-polarized 1×4 antenna array design for telecommunication base station. One of the bands covers global system for mobile communication (GSM) band, while the other covers both digital communication system (DCS) and universal mobile telecommunication system (UMTS) bands. The antenna is based upon an aperture stacked patch layout and incorporates a simple a...

Circularly polarized (CP) dual frequency cross-shaped slotted patch antenna on 1.575 mm thick glass microfiber reinforced polytetrafluoroethylene (PTFE) composite material substrate is designed and fabricated for satellite applications. Asymmetric cross-shaped slots are embedded in the middle of the square patch for CP radiation and four hexagonal slots are etched on the four sides of the squar...

In this paper, Dual Band in Ultra wide band monopole patch antennas is proposed. These newly simulated structures are proposed for fabrication. The antennas are suitable for operating frequency of 7.9GHz and 13.5 GHz in UWB it is shown that return loss of the antennas at 7.9 GHz and 13.5 GHz is better than -10 dB. The VSWR obtained is less than 1.1 the patch antenna is found to have the compact...

A compact microstrip-fed ultra-wideband (UWB) planar monopole antenna with dual band rejected characteristic is presented in this paper. By etching two identical complementary square split ring resonators (CSRRs) in the radiation patch, dual band rejections in the WiMAX and WLAN bands are achieved. The proposed antenna, with the size of 30×34mm2, has been design. And the simulated results show ...

Microstrip antennas are widely used in many applications due to their low profile, low cost and ease of fabrication. In some applications it is desired to have a dual band or multiband characteristics. These characteristics can be obtained by coupling multiple radiating elements or by using tuning devices such as varactor diodes [1, 2]. However, these methods make antenna more complicated. A si...

A modified electromagnetic-bandgap (M-EBG) structure and its application to planar monopole ultra-wideband (UWB) antenna are presented. The proposed M-EBG which comprises two strip patch and an edge-located via can perform dual notched bands. By properly designing and placing strip patch near the feedline, the proposed M-EBG not only possesses a simple structure and compact size but also exhibi...

In this paper, a new method for designing an active dual-band dipole antenna is proposed. The operating frequencies of the proposed antenna are 150 and 450 MHz that are usually used in military applications. Using a series stub is the main idea in the proposed dual-band antenna, where it makes an independent resonance frequency higher than the main resonance frequency of a conventional dipole. ...