scholarly journals Composite GPS Patch Antenna for the AR Bandwidth Enhancement

2016 ◽  
Vol 2016 ◽  
pp. 1-6
Author(s):  
Minkil Park ◽  
Wonhee Lee ◽  
Taeho Son
Keyword(s):  
Radiation Pattern ◽  
Global Positioning System ◽  
Patch Antenna ◽  
Axial Ratio ◽  
Patch Antennas ◽  
Positioning System ◽  
Bandwidth Enhancement ◽  
Global Positioning ◽  
Hybrid Coupler ◽  
Vswr Measurement

A composite Global Positioning System (GPS) patch antenna with a quadrature 3 dB hybrid coupler was designed and implemented for working RHCP and had a broadband axial ratio (AR) bandwidth. We designed two patches as a FR-4 patch and 1.5 mm thickness thin ceramic patch with a quadrature 3 dB hybrid coupler. A CP radiation pattern was achieved, and the AR bandwidth improved by incorporating a quadrature 3 dB hybrid coupler feed structure in a micro-strip patch antenna. SMD by chip elements was applied to the quadrature 3 dB hybrid coupler. For the composite FR-4 and ceramic patch antennas, the VSWR measurement showed a 2 : 1 ratio over the entire design band, and the 3 dB AR bandwidth was 295 and 580 MHz for the FR-4 patch and ceramic patch antennas, respectively. The antenna gains for the composite FR-4 and ceramic patch antennas were measured as 1.36–2.75 and 1.47–2.71 dBi with 15.11–25.3% and 19.25–28.45% efficiency, respectively.

scholarly journals Modified Dual-Band Stacked Circularly Polarized Microstrip Antenna

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Guo Liu ◽  
Liang Xu ◽  
Yi Wang
Keyword(s):  
Radiation Pattern ◽  
Global Positioning System ◽  
Microstrip Antenna ◽  
High Performance ◽  
Axial Ratio ◽  
Dual Band ◽  
Optimized Design ◽  
Positioning System ◽  
Circularly Polarized ◽  
Global Positioning

A novel high-performance circularly polarized (CP) antenna is proposed in this paper. Two separate antennas featuring the global positioning system (GPS) dual-band operation (1.575 GHz and 1.227 GHz for L1 band and L2 band, resp.) are integrated with good isolation. To enhance the gain at low angle, a new structure of patch and two parasitic metal elements are introduced. With the optimized design, good axial ratio and near-hemispherical radiation pattern are obtained.

Development of performance-improved global positioning system (GPS) patch antenna based on sol-gel-synthesized dual-phase (Bi4Ti3O12)X- (CaCu3Ti4O12)1-Xcomposites

2016 ◽  
Vol 51 (6) ◽  
pp. 366-379 ◽  
Author(s):  
Thiruramanathan Pandirengan ◽  
Marikani Arumugam ◽  
Madhavan Durairaj ◽  
Gokul Raja Thangaiyanadar Suyambulingam
Keyword(s):  
Global Positioning System ◽  
Patch Antenna ◽  
Sol Gel ◽  
Dual Phase ◽  
Positioning System ◽  
Global Positioning

scholarly journals Minitaurized Reconfigurable Multiband Antennas For GPS, UMTS, WiMAX & WLAN Wireless Applications

2019 ◽  
Vol 8 (2S7) ◽  
pp. 435-439 ◽  
Keyword(s):  
Radiation Pattern ◽  
Global Positioning System ◽  
The Other ◽  
Positioning System ◽  
Mobile Telecommunication ◽  
Telecommunication System ◽  
Pin Diodes ◽  
Wireless Applications ◽  
Multiband Antennas ◽  
Global Positioning

In this manuscript, compact multiband antenna for four different wireless applications is presented. Two stubs which are embedded on radiating patch produces resonances for Global Positioning System (GPS) and Universal Mobile Telecommunication system (UMTS). Also, the other two resonating bands are obtained by etching two slots which produces resonances for WiMAX and WLAN bands. Antenna offers good gain and radiation pattern at operating frequencies bands. Furthermore, to control resonating bands which are obtained by means of stubs and slots, antenna is reconfigured by using 4 PIN diodes. Antenna is designed on Rogers RT Duroid5870 with compact dimensions of 20×20 mm2 .

scholarly journals A Planar Inverted Feed Antenna for WiMAX and GPS Applications

2019 ◽  
Vol 8 (6S3) ◽  
pp. 1242-1244
Keyword(s):  
Global Positioning System ◽  
Patch Antenna ◽  
High Frequency ◽  
First Century ◽  
Positioning System ◽  
Defected Ground Structure ◽  
Ground Structure ◽  
Global Positioning ◽  
Coaxial Probe ◽  
Microstrip Structure

The mobile phone commerce is glooming exponentially in the twenty first century. The novelty in Planar Inverted Feed Antenna (PIFA) has a massive position in it. It has a coaxial probe feed and numerous shorting pins in excess of the intended patch antenna. Flame Retardant (FR4) substrate is used in intending of antenna. The recompense in initiating the Defected Ground Structure (DGS) over the patch as well as Defected Microstrip Structure (DMS) was scripted in the intended antenna. The intended petite outline, worth effective and the antenna can be used in the functions similar to Global Positioning System (GPS) at 1.49 GHz reverberating frequency, Worldwide Interoperability for Microwave Access (WiMAX) at 2.53 GHz and 3.5 GHz reverberating frequencies respectively. Simulation is prepared through High Frequency Structural Simulator (HFSS).

scholarly journals A circular monopole patch antenna loaded with inverted L-shaped stub for GPS application

2020 ◽  
Vol 9 (5) ◽  
pp. 1950-1957
Author(s):  
Sowmya G. A. ◽  
Akshtha Kamath ◽  
Anala Keshava ◽  
Om Prakash Kumar ◽  
Shweta Vincent ◽  
...  
Keyword(s):  
Radiation Pattern ◽  
Global Positioning System ◽  
Patch Antenna ◽  
High Frequency ◽  
Impedance Matching ◽  
Impedance Match ◽  
Compact Antenna ◽  
High Frequency Structure Simulator ◽  
Global Positioning ◽  
Operating Bandwidth

This article introduces a planar monopole patch antenna for global positioning system (GPS) application. Our design has a circular patch with a stub of inverted L-shape which is used as the radiating portion and partial ground. Our proposed design of the stub allows the antenna to operate at a frequency of 1.5 GHz. The circular monopole is fed by an offset feeding to have an impedance match of 50 ohms. The compact antenna has been designed and simulated on RT Duroid 6006 material with relative permittivity ( ) of 6.15 and 0.0019 as the loss tangent. Our antenna has a dimension of 65 × 55 × 2.54 mm3 . A gain of 1.23 dB is observed at the resonant frequency of 1.5 GHz and the antenna exhibits dipole like radiation pattern both in E and H-plane. The antenna has better impedance matching, good gain and steady characteristics of radiation pattern across the operating bandwidth. High frequency structure simulator (HFSS) v.13.0 is used to carry out all the simulations.

Aplikasi Pemosisi Lokal Berbasis Android Dengan Menggunakan GPS

INTI TALAFA ◽  
2018 ◽  
Vol 8 (2) ◽  
Author(s):  
Yaman Khaeruzzaman
Keyword(s):  
Global Positioning System ◽  
Positioning System ◽  
Database Server ◽  
Global Positioning

Seiring dengan pesatnya kemajuan teknologi saat ini, kebutuhan manusia menjadi lebih beragam, termasuk kebutuhan akan informasi. Tidak hanya media informasinya yang semakin beragam, jenis informasi yang dibutuhkan juga semakin beragam, salah satunya adalah kebutuhan informasi akan posisi kita terhadap lingkungan sekitar. Untuk memenuhi kebutuhan itu sebuah sistem pemosisi diciptakan. Sistem pemosisi yang banyak digunakan saat ini cenderung berfokus pada lingkup ruang yang besar (global) padahal, dalam lingkup ruang yang lebih kecil (lokal) sebuah sistem pemosisi juga diperlukan, seperti di ruang-ruang terbuka umum (taman atau kebun), ataupun dalam sebuah bangunan. Sistem pemosisi lokal yang ada saat ini sering kali membutuhkan infrastruktur yang mahal dalam pembangunannya. Aplikasi Pemosisi Lokal Berbasis Android dengan Menggunakan GPS ini adalah sebuah aplikasi yang dibangun untuk memenuhi kebutuhan pengguna akan informasi lokasi dan posisi mereka terhadap lingkungan di sekitarnya dalam lingkup ruang yang lebih kecil (lokal) dengan memanfaatkan perangkat GPS (Global Positioning System) yang telah tertanam dalam perangkat smartphone Android agar infrastruktur yang dibutuhkan lebih efisien. Dalam implementasinya, Aplikasi Pemosisi Lokal ini bertindak sebagai klien dengan dukungan sebuah Database Server yang berfungsi sebagai media penyimpanan data serta sumber referensi informasi yang dapat diakses melalui jaringan internet sehingga tercipta sebuah sistem yang terintegrasi secara global. Kata kunci: aplikasi, informasi, pemosisi, GPS.

Sign in / Sign up

Export Citation Format

Share Document