Featured Publications

1. Providing Narrowband IoT Coverage With Low Earth Orbit Satellites 1/21/2020

   This article describes the modeling of a SATCOM link, specifically the use case of using a satellite overlay to extend service continuity to IoT devices in a poorly covered rural area.

2. Using Wavefarer Automotive Radar Simulation Software And Chirp Doppler To Assess Radar Performance For Drive Scenarios 12/30/2019

   Significant innovation is taking place in automotive industry around capabilities for advanced driver assistance systems (ADAS). Radar sensors operating at millimeter wave bands are a key technology and require new modeling and simulation tools to predict their performance in driving environments. This presentation demonstrates a new modeling and simulation capability that addresses these challenges, combining ray-tracing and scattering simulations from Remcom’s WaveFarer with chirp Doppler analysis algorithms to assess radar performance for drive scenario simulations.

3. 5G Millimeter Wave Frequencies And Mobile Networks Technology Presentation 12/30/2019

   Millimeter wave frequency bands are a proposed technology for supporting robust 5G mobile networks. Remcom contributed to an in-depth study published by the International Wireless Industry Consortium (IWPC), using Wireless InSite to analyze throughput in a complex urban scenario. These coverage results highlight potential obstacles and solutions for deployment of mmWave for 5G.

4. Wearable Dual-Band MIMO Antenna 11/8/2019

   This example demonstrates a possible wearable antenna design for dual-band use constructed of textile materials. The performance of the antenna remains acceptable as it is deformed as might happen in actual usage cases. When combined in a MIMO array, the antennas show good isolation and acceptable antenna performance.

5. Simulation Of Electrostatic Discharge (ESD) Testing With XFdtd 6/17/2019

   The ability to simulate the ESD testing process and pinpoint locations in wireless devices susceptible to ESD damage would be extremely valuable and allow engineers to reduce the number of prototypes required to design products for minimal ESD damage. This presentation from the 2019 IEEE MTT-S NEMO conference summarizes a number of ESD simulation features in XFdtd. 

6. Simulating A Beam Scanning Substrate Integrated Waveguide Leaky Wave Antenna In XFdtd 6/14/2019

   In this example, XFdtd is used to simulate the performance of a substrate integrated waveguide (SIW) leaky wave antenna with transverse slots. The antenna operates like a transverse slotted rectangular waveguide, but is designed in SIW for reduced cost, size, and for easier integration with planar circuits. Results for S-parameter performance, antenna gain, and efficiency are computed.

7. Simulating Performance Of A Low Cost, Chipless RFID System In XFdtd 6/10/2019

   In this example, an RFID tag system is examined using XFdtd EM Simulation Software to validate its performance for use in situations where high volume usage requires very low-cost components. The RFID tag is constructed as a microstrip device with spiral resonators tuned to specific frequencies that represent separate bits of the tag code. The resonators are connected to two cross-polarized ultrawide band monopole disk antennas which receive and transmit the signal from the scanning system. The system is demonstrated with a design capable of encoding six bits that are formed by resonances 100 MHz apart between 2.0 and 2.5 GHz. The testing is done using two cross-polarized log period dipole array antennas which transmit and receive the signal from the RFID tag.

8. A 5G, 60 GHz Antenna Array For mmWave Wireless Virtual Reality Headsets 5/13/2019

   The array is composed of four elements which each have two patches and a parasitic element. The parasitic element aids in producing a wider beam in one dimension to give better coverage. The beams may be steered by varying the phase shift between elements to provide near hemispherical coverage.

9. Using EM Simulation For 5G Design E-Book 5/6/2019

   5G is pushing the boundaries of wireless communications and wireless device design. New innovations are needed to accommodate increased requirements for enhanced mobile broadband, massive machine-type communications, and ultra-reliable, low-latency communications. These application examples demonstrate how Remcom’s software can be used to solve challenges related to 5G and MIMO use cases such as MIMO and array design, 5G urban small cells, fixed wireless access, indoor Wi-Fi and millimeter-wave, beamforming, and more.

10. Design And Simulation Of 28 GHz Beamforming System And Antenna Array For 5G Network Base Stations 4/18/2019

    The system consists of three parts: a Rotman lens beamformer with seven input ports and eight output ports, a series of stripline Wilkinson power dividers to split each Rotman output into eight equal signals, and an 8x8 patch antenna array. The design process consists of three separate stages.