scholarly journals Simple and Effective GNSS Spatial Processing Using a Low-Cost Compact Antenna Array

Author(s):  
Ezequiel A. Marranghelli ◽  
Ramon Lopez La Valle ◽  
Pedro A. Roncagliolo
Author(s):  
Guoshuai Zhang ◽  
Kaixue Ma ◽  
Ningning Yan ◽  
Yu Luo ◽  
Haipeng Fu
Keyword(s):  
Low Cost ◽  

2019 ◽  
Vol 2019 ◽  
pp. 1-8
Author(s):  
Zheng Xu ◽  
Chengxiang Hao ◽  
Kuiwen Xu ◽  
Shichang Chen

This paper presents a novel compact Ku-band active electronically steerable antenna array design with a low-cost and integrated T/R 3D module employed for airborne synthetic aperture radar (SAR) systems. The entire system adopts 3D multilayer technology with vertical interconnection to construct the hermetically packaging RF modules. By assembling different multifunctional modules into a whole multilayer board, the 3D T/R technique greatly improves the system integration and reduces implementation cost and size. Besides, a wideband circular polarized antenna array was designed in LTCC and connected to the proposed T/R modules to form a complete AESA. The whole proposed antenna system has been fabricated and experimentally investigated. Measurement results showed very good phased array performances in terms of gain, axial ratio, and radiating patterns. The low-cost, lightweight, and low-power features exhibited by the proposed design validate its applicability for weight and power constrained platforms with great electronic steering ability.


2018 ◽  
Vol 66 (5) ◽  
pp. 2661-2666 ◽  
Author(s):  
Jose I. Herranz-Herruzo ◽  
Alejandro Valero-Nogueira ◽  
Miguel Ferrando-Rocher ◽  
Bernardo Bernardo ◽  
Antonio Vila ◽  
...  
Keyword(s):  
Low Cost ◽  

2020 ◽  
Vol 12 (5) ◽  
pp. 398-408 ◽  
Author(s):  
Haq Nawaz ◽  
Ahmad Umar Niazi ◽  
M. Abdul Basit ◽  
Furqan Shaukat ◽  
Muhammad Usman

AbstractThis paper presents a two-elements based, dual polarized, single layer, patch antenna array with improved isolation between transmit (Tx) and receive (Rx) ports for 2.4 GHz in-band full duplex (IBFD) or simultaneous transmit and receive wireless applications. The differential feeding deployed at the Rx port effectively suppresses the coupling which is termed as self-interference from the Tx port to achieve high Tx–Rx interport isolation. A simple 3 dB/180° ring hybrid coupler with nice amplitude and phase balance characteristics has been used for differential Rx operation. The mathematical description for a differential feeding based self-interference cancellation mechanism is also presented for the proposed dual polarized IBFD antenna array. The measurement results for the implemented prototype of the antenna array demonstrate very nice levels of Tx–Rx interport isolation. The implemented single layer, compact antenna array presents 10 dB return-loss bandwidth of more than 50 MHz for both Tx and Rx ports. The prototype achieves >80 dB peak interport isolation and 75 dB (65 dB) isolation in 20 MHz (50 MHz) bandwidth.


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