A compact multiband Inverted-F Antenna (IFA) for the use in a mobile phone is presented. By adopting a novel folded 3-D structure, a quarter-wave resonator and a parasitic strip, the proposed antenna covers eight bands and exhibits reduced electrical size and low profile. S11 less than −6 dB is obtained in the GSM900, GSM1800, DCS, Bluetooth, Wi-Fi, WLAN5.2, WLAN5.8 and the WiMAX bands. The dim...

This paper focuses on the interaction and integration of several critical components of a Mobile Ad-Hoc Network (MANET) using smart antenna systems. A MANET is a wireless network where the communicating nodes are mobile and the network topology is continuously changing. One of the central motivations for this work comes from the observed dependence of the overall network throughput on the desig...

In recent years, many small internal antennas have been designed for mobile handsets in [1, 2]. Many monopole-type antennas have been investigated because they operate at the lowest resonant mode which is helps to reduce their size. A loop-type antenna, on the other hand, has rarely been applied to small antenna design because the lowest resonant mode is a parallel resonance (anti-resonance). C...

In this letter, a compact planar ultra-wideband mobile antenna with L-shaped extended ground stubs is presented. The proposed handset antenna consists of two planar meandered monopole radiating elements, i.e., main antenna and auxiliary antenna respectively, located at the diagonal corners of mobile phone printed circuit broad with standard size of 136 × 68mm2. Each radiating element is compose...

With recent advancements in electronics communication technologies more and more compact and powerful electronics devices are coming up with wireless communication capabilities, Not only computers or mobile now even vehicles are equipped with wireless communication capabilities, this advancement create need for new antennas to be developed to fit the new device and service requirements. In this...

The Microstrip antenna has been commercially used in many applications, such as direct broadcast satellite service, mobile satellite communications, global positioning system, medical hyperthermia usage, etc. The patch antenna of the size reduction at a given operating frequency is obtained. Mobile personal communication systems and wireless computer networks are most commonly used nowadays and...

In this paper, we present a weighted-polarization wearable multiple-input multiple-output (MIMO) antenna that is based on radiofrequency (RF) signal processing to realize ultra-high-speed and highcapacity mobile communications. The proposed antenna is comprised of three orthogonal dipoles, two of which can be selected according to a weight function in different usage scenarios. The weight funct...

We investigate the different dominant propagation mechanisms in an urban macroand microcellular base station (BS) installation with a special focus on the application of smart antennas by means of adaptive antenna array measurements. We demonstrate that the congruence of the geometrical mobile station (MS) position and the dominant direction of arrival is only fulfilled for macrocellular BS ins...

The purpose of this paper is to design and fabrication of an annular ring slot patch antenna with short stub (ARSPA) for mobile applications Digital Cellular System (DCS) (1.711.88) GHz, Personal Cellular System (PCS) (1.85 -1.99) GHz, and Universal Mobile Telecommunications System (UMTS) (1.71-2.17) GHz. Return loss and bandwidth are studied with respect to short stub location. By using short ...

The use of diversity in the reception of mobile radio signals is well known and is implemented in most wireless systems of today. Several authors have studied polarization diversity [1{4]. However, no study has to our knowledge analyzed the e ect of the actual base station antenna characteristics on the diversity performance. In this paper we study the envelope correlation and signal strength a...