Product - CGMA 113

CGMA 113

Dual-band GNSS/ GPS
Antenna Module

The CGMA 113 antenna is a circularly polarized high gain antenna used for satellite-based communications such as GPS and GNSS. It is designed to be mounted directly on a PCB. Additional circuitry to apply phases in each port can be added.

Typical applications include:

  • Enhanced GPS/GNSS satellite communications
  • Any device including automotive for location detection service
  • Best product for RTK (Real Time Kinematic) positioning for precise position detection

This antenna delivers best in class antenna gain technology for satellite navigation systems such as GNSS to support both L1 and L5 bands at 1575.42 MHz and 1166.22 MHz. Satellite navigation applications of today demand higher circular gain than ever before. Higher gain antennas with high circularity are necessary to achieve better position detection for these next generation satellite-based position detection systems such as RTK (Real Time Kinematic) Positioning.  By using its patented antenna technology, SkyMirr is able to build higher gain and low AR (Axial Ratio) solutions as compared to currently available antennas.

The CGMA113 antenna has been carefully designed to work equally well in both the L1 band and the L5 band. This allows for better position detecting as the world requires more precise location detection services in Automotive, IoT, Military, and more applications.

Other features of the CGMA 113 include:

  • RHCP gain 2.3 to 4.7 dBic
  • RoHS compliant

Additional circuitry to provide phases in each antenna port may be necessary to achieve circular polarization in radiation. For further services including the circuit design, please contact the SkyMirr sales office



Industrial expert in sales and manufacturing. Founder and President of QuantumFlo, Inc. a leader in the manufacturing and distribution of advanced, variable speed controlled, packaged pump systems for commercial plumbing, HVAC, municipal, irrigation and industrial market applications. QuantumFlo’s innovative technologies are the most energy efficient and sustainable technologies in the world. Advisory board chairman in GrowFL. BS in Business Administration from U of South Florida



Telecommunication/Mobile Expert, experienced CTO of Mobile Carriers in Japan and contributed as a technical advisor for US T-1 carrier. He is a senior telecom advisor and sits on the board of the MulteFire Alliance. He was with Sprint as a technical advisor for the CTO. Prior to Softbank, he was formerly VP of Softbank’s Solution Strategy Office, CTO & Board of Directors at Wireless City Planning and EVP/CTO at WILLCOM. Prior to these roles, he spent 20 years at KDDI in Japan. BA in Physics from Ibaraki University.



An award-winning computer scientist, entrepreneur, advisor, and investor. He serves as President and Chief Scientist of Gemedy and Managing Director of Reified and has taught at Harvard and MIT. He has founded, advised, and invested in 27 technology companies with a combined valuation of over $850 million. He is a contributing author of the New York Times Science Bestseller, “This Idea Must Die,” and the Amazon #1 New Release, “What to Think About Machines That Think.“ Ph.D. in Physics from Harvard University and S.B. in ECE from MIT.



Empowering Business to Succeed, Don is an industry expert in Finance, Business, and Operation. He has years of experience studying retail and hemp, CBD & cannabis industry trends, Partner in 2Go Advisory Group, President of, Former chairman in Vistage Worldwide, Inc. BS from UC Berkeley. 



Board Director, Executive and Advisor in Strategy, Global Governance and Business Transformation and award-winning developer of CASCADE® and Board Bona Fide® management tools. Founder of Boardwise, Inc., leading research and education on governance best practices. She holds Ph.D. and M.S. Rensselaer Polytechnic Institute and serves as adjunct professor in Business and Governance.


VP of Sales and PM, Korea

Over 25 years of sales and project management experiences in RF/Antenna industries. Previously Carl serviced global top tier companies such as SkyCross, LGE, ePlus in leadership positions including regional manager, Sales VP, and General manager. Received Masters dgree in Electrical Engineering from Florida Tech. 


Chief Financial Officer

Over 25 years of experience in finance/accounting leadership positions such as CFO and VP of Finance.

He have helped raise over $100M in venture and secondary offerings, taken companies through IPO, completed M&A transactions valued at ~$500M, and expanded global operations.


Chief Scientist

Over 30 years of experience in RF/Antenna/Medical areas as an academic/industrial leader such as Professor of Soonchunhyang University, Senior researcher in LGE, and Chairman of ITS (Intelligent Transportation System), the honored academic institute in Korea. 

Prior experiences include:

  • 1978-1987 : Gold Star Precision Co. LTD (Senior Eng. in Central LAB) – R&D for RADARs, Guided missile system, Antennas and RF devices
  • 1990-2021 : Professor, Dept of IT engineering, SoonChunHyang university, South Korea
  • 1992-1994 : Researcher, KASI (Korea Astronomy and Space Science Institute) – Design for mmw horn antenna
  • 2000-2004 : TEO, Nissi Telecomm Co. LTD – R&D for mobile antennas
  • 2021-current : Emeritus professor, SoonChunHynag university, South Korea

Ph.D. in Electronic Communication Engineering from Hanyang University. Published over 316 papers and 34 patents.


Co-Founder and Chief Revenue Officer

Mr. Kerry Greer is a highly driven, results-oriented Executive. Prior to joining SkyMirr, he used to be in senior executive positions in Technology Companies such as Globalstar, L3Harris Communications, and ACR Electronics, with over 30 years of experience leading R&D, Business Development, Product Development, volume Manufacturing, and Sales/Marketing teams in the wireless telecommunications industry. 

Over 10 patents for RF/antenna and communication systems design. MBA and MSEE from University of Florida


Co-Founder and Board Chairman

Over 30 years of experience in executive roles in IT/Display/Wireless Industries. An industry leader in business development/fundraising/startups. Currently CEO of NanoPhotonica, Operating Partner in Orchid Black, and Member of Orlando Tech Council.

He launches and accelerates the profitable growth of companies by creatively mapping technology to successful business models and market / customer penetration strategies, by leveraging industry partnerships, and by securing institutional and strategic investment.

His specialties are on Company vision, strategy and business planning

  • Corporate equity and debt financing -over $85M from leading VCs and private equity firms
  • Global operational planning and execution
  • Global team development
  • Global mergers & acquisitions
  • Global Tier 1 customer acquisition and retention
  • Technical innovation and realization

Ph.D. in Communication Systems from University of Pennsylvania


Co-Founder and Chief Executive Officer

Over 25 years of experience in RF/antenna technology and operations management. Various executive/technical positions including CEO, CTO, COO, VP and President for industry leading companies such as Taoglas, SkyCross, Samsung Electronics, etc.

Dr. Jo is a perfect leader to grow the RF Company. He majored antennas/RF technology in his Ph.D. and has deep knowledge in RF technology and products.

Prior to founding SkyMirr, Dr. Jo served Taoglas, as a global VP of Operation where he achieved significant improvements in project/product management, cost reduction, supply chain management, shipping, quality control, and others.

In his early career, he was one of the founding members of SkyCross, a Florida based start-up. He served the company as VP, COO, and eventually CEO, where he was able to grow it to one of the global leading RF companies with six hundred employees, and have business with global top-tier customers. 

He owns over 35 patents for antenna and RF system design. Dr. Jo received Ph.D. in Electrical Engineering from Florida Tech, BE from Korea University.