In this Bachelor Thesis the design of a horn antenna to measure the Cosmic Microwave Background (CMB) at 11 GHz is discussed. The theory underlying the design and di↵erent horn antenna types are treated. From this the optimal horn design is chosen; the Pickett-Potter horn. Then the design is optimized with a bandwidth of 1 GHz using CST Microwave Studio. Having obtained the final design, the Pi...

Wireless Sensor Networks (WSNs) is an important field of study as more and more applications are enhancing daily life. The technology trend is to achieve small-sized, cheap, and power efficient sensor nodes, which will make the system reliable and efficient. The Crossbow Technologies MICAz mote is an example used in this paper. Measurements of its propagation characteristics in a realistic envi...

Recently, a widely use of High Impedance Surface (HIS) structures in several applications such as in radar and telecommunication systems have been described in the literature. An interesting characteristic of the High Impedance Surface (HIS) is that it can be used to reduce the mutual coupling between microstrip antennas. In this paper, firstly the band-gap features of three types of high imped...

This article proposes a quad band patch antenna for mobile communication. The design requirements are to meet the 0.9 GHz, 1.8 GHz, 2.1 GHz and 2.45 GHz bands. The proposed antenna consists of a rectangular patch monopole printed antenna in which slotting technique is used to achieve multi band resonance. The Patch with three slotted lines generates four resonating frequencies to cover 0.9 GHz ...

In this study, a high-gain and dual-polarized Quad Ridged Horn Antenna (QRHA) is proposed designed to be used in Obstacle Penetrating Imaging Radar (OPIR) applications. The quad ridged design developed then optimized by using the antenna simulator software; CST Microwave Studio. parameters including center frequency, frequency bandwidth radiation pattern beam width are considered based on requi...

In this work, a new antenna will be presented in the form of F-inverted working at 28Ghz frequency is proposed for 5G wireless com- munications. This has been designed based on an FR-4. with shaped slots patch and interdigital ground band- width enhancement. The PIFA operating 28 GHz S11,-39.0885 dB, while peak gain 7.85dBi. Therefore, it suitable applications communications good matching retur...

This study introduces a compact branch-line coupler (BLC) based on metamaterial (MTM) technology that can operate in sub-6 GHz 5G frequency bands. Conventional vertical and horizontal sections of the BLC were replaced with T-shaped TLs interdigital capacitor (IDC) unit cells incorporated into to improve their performance reduce dimensions. The is designed Rogers RT5880 substrate material, it op...

In this paper, compact antenna has been designed and implemented in a 2X2 Multiple-Input Multiple-Output (MIMO) system. The antennas are compact double-sided printed microstrip patch antennas and fed by a microstrip line designed for a frequency of 2.4 GHz used for industrial, scientific and medical (ISM) band applications. Polarization diversity of the two antennas is used to construct indepen...

This paper presents two types of dual band (2.4 and 5.8 GHz) wearable planar dipole antennas, one printed on a conventional substrate and the other on a two-dimensional metamaterial surface (Electromagnetic Bandgap (EBG) structure). The operation of both antennas is investigated and compared under different bending conditions (in E and H-planes) around human arm and leg of different radii. A du...