Coupled resonators are widely used in the design of filters with dual-passband responses. In this paper, we present a dual-band bandpass filter using only couplings between adjacent resonators without cross-couplings. The dual-band bandpass filter with centre frequencies of 1747MHz and 1879MHz respectively is designed and fabricated using microstrip U-shaped resonators. Using the coupled resona...

This paper presents a review of the most important features of the Shorted Annular Patch antennas. These radiators have several mechanical and electrical advantages with respect to other microstrip geometries. In particular, the presence of the short in the central zone of the antenna provides increased radiation flexibility which permits to control the antenna beam aperture. In order to demons...

Abstract:In telecommunications, there are several types of microstrip antennas, the most common of which is microstrip patch antenna. Patch antennas are also relatively inexpensive to manufacture and design because of simple 2D physical geometry. In this paper Two L slits are introduced at the both edge of the patch to reduce the resonant frequency. The proposed antenna is developed to operate ...

This paper presents a novel way for achieving endfire radiation pattern using microstrip patch antenna array. The extensively used microstrip patch antennas i.e. rectangular and circular microstrip patch antennas, either single patch or in an array configuration do not have an endfire radiation pattern. The antenna array presented in this paper is designed by changing the geometry of the antenn...

We have developed a broad-band technique for measuring the relative permittivity of lowthin films using microstrip transmission-line measurements. From measurements of the complex microstrip propagation constant and the characteristic impedance, we determined the relative permittivity of thin films incorporated in microstrip lines. We present measurement results to 40 GHz for both an oxide and ...

In these research paper two designs such as rectangular microstrip antenna and concentric equilateral triangular microstrip antenna are presented. The resonant frequency of this antenna is 8 GHz suitable for wireless applications. The antenna is fed by microstrip feeding technique. Design of an antenna using ADS (Advanced Design System), based on MoM (Method of Moments) has been used to analyze...

This paper presents the design analysis of five vertical shielded microstrip lines. The vertical microstrip transition solves the problem of discontinuity between two microstrip lines in different layers of microwave circuit. The main objective of this paper is to compute the capacitance and other relevant parameters like potential distributions of five shielded vertical microstrip line by usin...

1. Abstract In this design, the dual band dipole antenna feed network with wide bandwidth tapered microstrip balun is studied. The design and experimental results of low profile embedded microstrip dipole antenna with tapered microstrip balun shows fairly good performances. The feed network of the design with wider bandwidth and lower power loss tapered microstrip line to overlap coplanar strip...

In this paper, we present novel three-dimensional (3-D) compact and easy-to-design passive solutions (filters/duplexers, antennas, couplers) using system-on-package (SOP) multilayer low temperature cofired ceramic (LTCC) and organic (Liquid Crystal Polymer (LCP)) technologies in RF and millimeter-wave wireless systems. Both ceramic and organic technologies are candidates for the 3-D integration...

By loading properly arranged slots in an equilateraltriangular microstrip patch, a dual-frequency and broadband operations of a single-feed triangular microstrip antenna are presented. Details of the proposed dualfrequency and broadband designs are described and simulated results of nearand far-field parameters are presented and discussed.