Cellular Expert Witnesses

cellular expert testimony

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Cellular expert witness candidates typically have extensive experience in areas of expertise such as wireless technology, information technology, software engineering, signal processing, electrical engineering, and/or telecommunications. While many experts have cellular technology expertise, an expert witness carries the additional responsibility of providing testimony in a manner whereby lay people can understand the technology and digital evidence.

Cellular frequencies are frequency ranges within the ultra high frequency band that have been assigned for cellular-compatible mobile devices to connect to cellular networks. Mobile broadband is a term for wireless Internet access via cell towers. 

Often, matters requiring cellular expert witness work involve intellectual property, such as patent infringement litigation or trade secret disputes. Expert witness services by a cellular expert could include expert consulting, prior art searches, patent invalidity arguments, digital forensics, expert report preparation, depositions and/or expert witness testimony in the courtroom. In addition, a law firm may request a telecommunications expert for pre-litigation consulting work. Example matters that Cahn Litigation Services has searched for expert witness for include:

Cahn Litigation Services has the experience required to turn an expert witness search for a cellular technology expert around quickly. The firm has an earned reputation for providing cellular and wireless expert candidates for litigation support with the right balance of expertise and testimony to support each project and it nuances.

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Cellular Expert Witness - Representative Bios

Please Note: All Cahn Litigation expert witness searches are customized to attorneys' precise specifications and preferences. Attorneys are encouraged to discuss search parameters with a Cahn search specialist.

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The below expert witness bios represent a small fraction of those Cellular experts known by Cahn Litigation Services. These bios are provided to give lawyers a sense of the Cellular landscape.

Expert Witness #212677

This expert is a proven authority in cellular, wireless, CDMA, GPS, 3G, 4G, LTE, BPL, Satellite and new and developing wireless, data and cellular standards for ANSI-41, GSM, and 3rd Generation Systems. This expert's career has spanned many years in the field of cellular communication. This inventor is a named inventor on approximately thirty patents relating to cellular technology innovations.  

This expert is also one of the most sought-after legal expert witnesses in multiple telephone and data technological areas. A proven authority, this expert's career has spanned many years in the field of cellular communication and includes 27 patents in cellular technology innovations. This expert can break down technical subjects into language a jury will understand and help attorneys become educated on specific areas of technology.

This expert is an extraordinary asset to attorneys seeking case assistance in the fields of wireless, cellular, PCS and telephony. This expert is certified as a testifying expert in Federal and State courts. This expert has assists legal counsel with:

-  Evaluation of pretrial discovery
-  Preparation of questions in technical matters for depositions
-  Determining the facts of a matter and suggesting case strategy
-  Writing subpoena language and providing proper service address for required data
-  Producing and reviewing opposing depositions
-  Testifying with exhibits and preparation of the attorney's material, questions and cross examination
-  Producing technical tutorials for the legal team and for juries

Cases have included:

-  Patent Infringement Matters
-  3G CDMA, TDMA, GSM & AMPS, UMTS and interworking Cellular Telephony
-  Third Generation Wireless/Cellular Architecture
-  Telecom Standards including IPTV, CCITT, TIA, TR45, 3GPP, 3GPP2, BPL, PLC, OPERA and ITU
-  Telecommunication Intellectual Property Rights (regarding issues of validity, timely disclosure, ITC prep)
-  Satellite Communications
-  Internet Telephone, Messaging, SMS, MMS, VoIP, Push-to-Talk, PoC
-  Wireless Fraud, Authentication and Validation Issues
-  Aircraft Passenger Communications

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Expert Witness #219481

This expert is a noted technologist, product developer, consultant, patent analyst, educator and expert witness specializing in data and voice communications including mobile, cellular, wireless technologies (2G, 2.5G, 3G and 4G/LTE), GPS technologies, wired technologies, networks, phones, standards, services and systems. This expert has many years of experience in the field of electrical, RF and telecommunications engineering, has worked for private organizations, and founded several successful start-up telecommunications companies. This expert holds over 35 US and International Patents in the telecommunications field. This expert's professional activities and services have focused exclusively on data and voice for mobile, cellular, GPS, wireless and wired technologies, forensics, electronic discovery, markets, standards, spectrum, regulations, networks and services. This expert has taught seminars on mobile, cellular and fixed wireless technologies and has served as a plaintiff and defendant expert witness on a wide spectrum of civil, criminal and business matters/litigation involving wired and wireless technologies, electronic discovery, communications products and services. As a patent analyst, this expert has assisted many leading law firms in defending against or asserting claims of patent infringement and patent validity. This patent work has encompassed Wi-Fi/WLAN standards, Bluetooth standards, DSL standards, all generations of standards for GSM, UMTS, LTE, and CDMA2000 cellular standards, including GSM/3GPP, ETSI, OMA,WAP, CT-2 / DECT / COMS. This expert has given depositions and has extensive testifying experience.

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Expert Witness #255791

This expert designed Wireless interference Testing Intelligences and simulation studies for 5G, LTE-A, VoLTE, Wi-Fi, Bluetooth, avionics GPS and Iridium, IoT, and more. This expert is a Consulting Engineer where this expert has considerable litigation, expert testimony, and expert consulting experience.

This expert has extensive experience in wireless and embedded systems design for the avionics and aerospace, public safety, consumer, cellular, medical devices, and semiconductor industries. This expert was the Consulting Engineer and Wireless SME for an android-based Wi-Fi Infusion Pump. This expert was Principal Systems Engineer, involved in Graphical Flight Planning techniques and SATCOM and worked on airliner electric power generation systems.

This expert has experience in many aspects of Secure Land Mobile Radio, Cellular Subscriber and Infrastructure, WiFi, and Cordless technologies. There this expert had assignments of SW architect, DSP Instructor and Team Lead, Patent Committee Member as both an inventor and as a practitioner, Modem and FPGA chief architect, and in International Business development.

This expert was a Principal Engineer, working on chip designs for cordless and CDMA phones. This expert was appointed faculty teaching CDMA and communications theory.

This expert is the named inventor on twenty issued US utility patents covering cellular, public safety radio, and cordless technologies, was awarded a BSEE degree, and is a registered Professional Engineer. Further, this expert is admitted to the Patent Bar and is licensed to practice before the U.S. Patent and Trademark Office.

This expert is the recipient of several industry awards.


• Professional Engineer

• Agent, U.S. Patent and Trademark Office

• Commercial Pilot, Instructor Pilot, Ground Instructor, Remote Pilot.


• Senior Member, Institute of Electrical and Electronics Engineers.

• IEEE ComSoc and EMC societies.

• Experimental Aircraft Association.

• Aircraft Owners and Pilots’ Association.

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Expert Witness #214831

This expert holds a BS, MS and PhD in Electrical Engineering and serves as a Professor at a School of Electrical and Computer Engineering where this expert teaches undergraduate and graduate-level classes on Electromagnetics, Antenna Engineering, Microwave Design, Satellite Communications, and Advanced Analytical Electromagnetics. In addition to teaching duties, this expert founded a research group that studies radiolocation, channel sounding, backscatter radio, RFID, and applied electromagnetics. A frequent consultant to industry, having advised many multinational corporations on wireless technology, this expert brings to the table many years working in the area of antennas and base station cellular technology. Several notable projects and achievements in this field include:

- This expert authored the first textbook on space-time wireless and antenna design. This textbook was a highly-cited research classic in the field, the first to describe how next-generation (3G, 4G, and beyond) base station antennas should be designed.
- This expert was awarded for a paper on the first characterization of radio propagation at 5.8 GHz for utility-mounted base stations delivering wireless internet to residences.
- Developed First-of-its-kind Wireless Curriculum for including a Cellular Base Station Technician Certificate program.
- This expert's research group was the first academic group to demonstrate fine-scale position location of cell phones that dial 911 in a live cellular system.
- This expert and students have written more than 120 journal and conference papers, mostly on the topic of antennas and propagation for wireless communication systems. This expert is listed as inventor or co-inventor on 6 patents related to antennas and antenna systems.
- This expert has directed antenna design projects for government organizations and private companies.

This expert has been involved in 5 litigation matters, all regarding wireless antennas and hardware, including report writing (validity, infringement, IPR, claims construction), deposition (3 days), and trial testimony (ITC). .

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Expert Witness #225865

This expert is an internationally recognized expert in the field of high-speed communication and computing, and the development of semiconductor devices for the related applications.

This expert was a lead systems engineer for a telecommunications company in transitioning away from their voice centric networks, into multi-services capable networks suited for the Internet era.

This expert designed one of the earliest nationwide, commercial-scale, code division multiple access, or CDMA, networks. This expert was the leading author of the technical blueprint for this wireless cellular network. Since then, this expert has been continuously researching in 3G UMTS / 4G LTE / 5G IoT wireless networks as well as various generations of WiFi technology.

This expert’s research area includes switching, routing, performance control and security in the communication networks. This expert and students invented and implemented several methods of high-performance switching, including multi-channel switches that alleviate the speed and performance constraints of electronic switches. The pattern matching engines that the research group developed are used for processing complex instructions embedded in communication packets at billions of packets per second. The content search engine that this expert’s research group developed has been incorporated into numerous cybersecurity systems in active networks and is being developed for machine learning and data mining for various applications including cybersecurity and the Internet of Things (IoT).

In addition, this expert is actively involved in the development of virtualized cluster computing networks. This expert developed algorithms to control code downloading from the network servers to the end-user units. Based on these algorithms, applications running on the smartphones and portable devices can run much faster without consuming excessive battery powers. By quantifying the information related to the usage patterns, a large amount of user data can be stored, which can help improve the mobile application significantly.

This expert also focuses on future generations of wireless technology. This expert has developed methods that enable coordinated transmission and reception of wireless signals among multiple base stations. Previously, radio signals from multiple base stations are considered as interference. Leveraging on the results achieved by this expert, a cluster of base stations can work together as a single resource enhancing the quality of radio signals across extremely noisy wireless channels. This research is critical in accommodating the next generation of the Internet and wireless networks, which integrates numerous Internet of Things (IoT) as part of the intelligent networks.

This expert has developed and implemented several semiconductor integrated circuit chips. These integrated circuit chips include switch fabrics, processors, high speed interfaces, protocol transposers, controllers, and memory cells and arrays.

This expert has 9 U.S. patents, published extensively in the wireless network field, and founded and managed two companies. This expert has testified extensively in both state and federal courts on issues of patent and copyright infringement in communications technology.

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Expert Witness #219695

This expert holds an MS and PhD in Electrical Engineering. This expert's thesis was on A Four-Phase Modulation System for use with an Adaptive Array. This expert's efforts have helped shape multiple-antenna technology from the first smart antenna algorithms to recent contributions to 3G and 4G wireless standards. Multiple-input and multiple-output (MIMO) antenna technology has increased the reliability and spectral efficiency in practically all modern cellular communications systems. This expert pioneered the use of smart antennas for multipath communications with breakthrough work. This expert's optimal combining method is widely used in multiple-antenna receivers. This expert was the first to demonstrate spatial multiplexing using multiple antennas in wireless systems for increased channel capacity. While working at a research lab, this expert helped develop the cooperative multipoint concept for MIMO systems to address adjacent-cell interference problems. This approach allows base stations to share information and act as a larger MIMO system that is able to suppress adjacent-cell interference, resulting in dramatically increased capacity. It has become an important research area in wireless communications and is impacting the next generation of cellular phone technology. This expert is a multi-award-winning inventor, author and adjunct professor. This expert has over 60 journal papers, 80 conference papers, and 20 tutorial/seminar presentations, along with 48 issued US patents (plus foreign equivalents and 7 published pending patents) and 9 trade journal papers.

This expert has been involved in several high-profile litigation matters and has been deposed and testified.

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Expert Witness #250600

This expert has an extensive background in the physical sciences and mathematics: engineering and science degrees plus many years in the high-technology defense/aerospace industry. This expert's forensic experience includes cases dealing with electric circuits, electric shock, lightning damage, electrically ignited fires, wire and radio communications, radio interference, cellular and wireless telephone technology, audio and video reproduction, surveillance and tracking systems, industrial machinery controls, traffic radar and lidar, automotive electronics, and other electrical and electronic equipment.

One project required this expert to examine and disassemble a free-standing ATM in a laboratory in order to find the design flaw that led to its occasional malfunction (and of other similar ATMs).

This expert's expertise in electronic computing and controls includes:

-  thorough training in electrical engineering and the physical sciences,
-  wide-ranging practice in the lab, in the field, and in the courtroom,
-  ability to constructively investigate and illuminate the capabilities and limitations of equipment operating, or failing, in the physical world.

This expert's training and experience with hundreds of incidents involving failures, mis-designs, and malfunctions allows this expert to understand and analyze the "next new thing" -- from smartphones to the smart grid -- accurately and efficiently.

This expert has contributed to a variety of legal matters all based on electrical equipment and electronic computing and controls technology including: electric shock, electrical wiring, electrical fire and lightning damage, audio and video recording, radio broadcasting, traffic radar and lidar, electronic control circuitry, cellular phone localization, electronic surveillance, consumer electronics capabilities, automobile control systems, radio and telephone communication, electrical accidents, and industrial machinery.  This expert has been deposed 30 times and testified in state and federal courts 30 times (different cases).

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