scholarly journals An FM receiver architecture for dual-mode/multi-mode mobile receivers.

2000 ◽  
Author(s):  
Brian Robar
2019 ◽  
Vol 9 (19) ◽  
pp. 3983
Author(s):  
Youn-Sung Lee ◽  
Joongjin Kook

This paper proposes an integrated DVB-X2 receiver architecture to support multi-mode broadcasting standards such as DVB-T2, DVB-C2, and DVB-S2 in a single platform. The entire system consists of a tuner block, a H/W-based receiver engine, a frame processor, and an A/V decoder. Specifically, an integrated architecture to solve key design and technical issues such as reducing the complexity of the receiver, efficiently accessing the H/W-based receiver engine, and simplifying an OFDM demodulator is proposed. The H/W-based receiver engine for DVB-X2 demodulation and channel decoding functions is implemented in two FPGA devices. The frame processor is implemented with 256 MB memory and a DSP operating at a clock speed of 1.0 GHz. To verify functionalities of the proposed DVB-X2 receiver, various test scenarios were considered in the laboratory setting. In particular, the proposed system was tested under various operating modes, as specified in standards such as DVB-T2, DVB-C2, and DVB-S2, and demonstrated successful operations in all test scenarios.


2013 ◽  
Vol 364 ◽  
pp. 439-443
Author(s):  
Xue Fei Jiang ◽  
Xiang Ning Fan

A architecture of multi-mode PLL frequency synthesizer one can meet a variety of communication standards is presented in this paper, which can provide each mode with the required frequency, while reducing the system's hardware cost. Optimized broadband high-speed dual-mode prescaler (DMP)'s internal structure, the principle of circuit design and its layout is introduced. The DMP is produced by 0.18μm CMOS technology. The post simulation results show that with the 1.8V power, the DMP's operating frequency range is 0.4 ~ 9.6GHz, the power consumption is 7.6mA.


Author(s):  
Nurshamimi Rosli ◽  
Siti Aminah Md Akhir ◽  
Siti Zuraidah Ibrahim ◽  
Nur Baya Mohd Hashim ◽  
Nurehansafwanah Khalid

<span>This paper presents the design of compact multi-mode microstrip resonator filters for dual-band application. The design is simulated using Advanced Design System (ADS) 2016 software. The benefit of the proposed filter is found to have a dual-mode frequency, where the odd-mode resonant frequency is the fundamental frequency represented by the length of the resonator while the even-mode resonant frequency is represented by the length of the stub. To validate the design, a prototype is fabricated on Rogers RO4003C substrate and measured using PNA Network Analyzer.</span>


2019 ◽  
Author(s):  
David Protealo ◽  
John Smith

AbstractMulti-mode complementary imaging can improve the accuracy of medical diagnosis. Multi-mode probes are a bridge between various imaging modes, which means that the development of multi-mode, multi-functional nano-probes is very necessary. This paper develops a targeted as a probe for nuclear magnetic and photoacoustic dual-mode imaging, Fe3O4@Au nanoparticles have superparamagnetism and can enhance the nuclear magnetic signal of T2 sequence. The needle has optical absorption properties and can enhance photoacoustic signals. After modifying the surface of Integrin monoclonal antibody, the probe has selective targeting to U87-MG tumor cells. Nuclear magnetic based on Fe3O4@Au nanoparticles /Photoacoustic dual-mode imaging will play a major role in tumor diagnosis.


Author(s):  
H. Tanobe ◽  
M. Kobayashi ◽  
Y. Shibata ◽  
O. Moriwaki ◽  
R. Nagase ◽  
...  
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