Last updated: November 2026

NEXT ANTENNAS
Privacy Policy

NEXT ANTENNAS ("we", "us", or "our") operates the website at www.nextantennas.com — a free RF and antenna engineering learning platform offering browser-based calculators, in-depth guides, and worked examples. This Privacy Policy describes how we handle personal information in accordance with applicable data protection laws, including the General Data Protection Regulation (GDPR) and applicable US state privacy laws. By using our website you agree to the practices described in this policy and to our Terms of Use.

Verify before you build: Our calculators, simulations and guides are for education and early-stage design. Before relying on any result, confirm it with a qualified RF engineer or a reputable electromagnetic simulation tool such as Ansys HFSS or CST Studio Suite. See Section 02.

Section 01

Information We Collect

We collect information in two ways: information you give us directly, and information collected automatically when you visit our site.

Information you provide directly:

Email address — if you contact us via email or submit a feedback form.
Name & message — if you reach out with a question, correction, or content suggestion.

Information collected automatically:

Usage data — pages visited, time spent, referring URL, and click interactions.
Device & browser data — browser type, operating system, screen resolution, and language preferences.
IP address — used in anonymised form for geographic analytics and security.
Calculator inputs — values entered into our RF calculators (e.g. substrate parameters) are processed entirely in your browser and are never sent to our servers.

RF Calculator Privacy: All calculations and simulations on this website — including the Patch Antenna, Microstrip Width, Smith Chart, Dipole & Monopole and RF Exposure calculators — run 100% client-side in your browser using JavaScript. No input values, results, substrate parameters, or files you load into a calculator (such as .s1p measurement data) are transmitted to or stored on our servers.

Section 02

Accuracy & Engineering Disclaimer

The calculators, simulations, worked examples and guides on NEXT ANTENNAS are provided for educational purposes and preliminary design only. They are built on published theory and closed-form equations (for example Balanis, Pozar and Hammerstad–Jensen) and on simplified numerical models such as 2D finite-element, method-of-moments and FDTD solvers.

Every model relies on assumptions: idealised or datasheet material properties, finite mesh resolution, simplified feeds, ground planes and boundaries, and nominal dimensions. Real hardware can differ because of substrate variation, fabrication and etching tolerances, connectors, cables, enclosures, nearby objects, and the measurement setup itself.

Before you rely on any result for a design, a product, a purchase, a certification, or a safety decision, please verify it independently:

With an expert — have the theory, assumptions and results reviewed by a qualified RF or antenna engineer.
With reputable simulation software — confirm the design in an established full-wave electromagnetic solver such as Ansys HFSS, CST Studio Suite, Altair Feko, Keysight ADS / Momentum, Sonnet, or a comparable professional tool.
By measurement — test a built prototype, for example with a vector network analyzer for S11, VSWR and impedance, and in an antenna range or anechoic chamber for radiation pattern and gain.

RF exposure results: The RF Exposure & MPE calculator gives estimates only. It is not a substitute for a formal RF exposure or compliance evaluation by a qualified professional, or for the rules and official guidance of your regulator (such as the FCC, ISED or your national authority). Always follow the regulations that apply to your site and equipment.

All content and tools are provided "as is", without warranty of any kind as to accuracy, completeness, or fitness for a particular purpose. To the fullest extent permitted by law, NEXT ANTENNAS is not liable for any loss or damage arising from the use of, or reliance on, any calculation, simulation or content on this website.

Our full warranty disclaimer, limitation of liability and other conditions of use are set out in our Terms of Use, which apply together with this Privacy Policy.

Found an error or a result that does not match your measurements or simulations? Please tell us at hello@nextantennas.com so we can review and correct it.

Ansys HFSS, CST Studio Suite, Altair Feko, Keysight ADS and Sonnet are trademarks of their respective owners. NEXT ANTENNAS is not affiliated with or endorsed by these companies.

Section 03

How We Use Your Information

We use the information we collect for the following purposes:

Purpose	Data Used	Legal Basis (GDPR)
Respond to questions, feedback & correction requests	Name, email, message	Legitimate interest
Improve website performance & content	Usage data, device data	Legitimate interest
Detect and prevent fraud or abuse	IP address, usage patterns	Legitimate interest
Comply with legal obligations	Any data where required by law	Legal obligation

We do not use your data for automated decision-making or profiling, and we do not sell your personal information to any third party.

Section 04

Cookies & Tracking

Our website uses cookies — small text files stored on your device — to ensure the site functions correctly and to understand how visitors use it.

Cookie Type	Purpose	Duration
Strictly necessary	Session management and security. Required for the site to function.	Session
Functional	Remember your preferences (e.g. substrate selection in calculators).	30 days
Analytics	Anonymised data on page views, traffic sources, and popular content (e.g. Google Analytics 4 with IP anonymisation).	Up to 13 months
Advertising	Served by third-party advertising platforms (e.g. Google AdSense) to display relevant ads that help cover the cost of running this website and our free RF tools. These cookies may track your browsing activity across other sites.	Up to 13 months

Your choice: You can manage or disable cookies at any time through your browser settings. Disabling advertising or analytics cookies will not affect the core functionality of our website or RF calculators. Most browsers also support opt-out extensions for ad tracking.

Advertising cookies are only placed with your consent where required by law. You may withdraw consent at any time via your browser settings or an ad personalisation opt-out link.

Section 05

Data Sharing & Third Parties

We do not sell, rent, or trade your personal data. We may share limited data with the following categories of trusted service providers, who are contractually bound to protect your information:

Web hosting & infrastructure — our servers are hosted on a reputable cloud provider with industry-standard security certifications.
Email service provider — used solely to deliver launch notifications and replies to your enquiries.
Analytics provider — Google Analytics 4, configured with IP anonymisation and data retention limits of 14 months.
Advertising platforms — we may display advertisements served by third-party networks (such as Google AdSense) to help cover the operational costs of maintaining this website and our free RF tools. These providers may set their own cookies and collect data about your browsing behaviour in accordance with their own privacy policies.
Font provider — Google Fonts is loaded from Google's CDN. Google may process your IP address to serve font files.

We may also disclose your information when required by law, court order, or to protect the rights and safety of NEXT ANTENNAS or others.

About advertising: NEXT ANTENNAS is a free learning platform. To cover hosting and development costs and keep all content free, we may display ads from third-party advertising platforms. We do not sell your personal data to advertisers. You can opt out of personalised advertising through your browser settings or via the advertising platform's own opt-out tools (e.g. Google Ad Settings).

Section 06

Data Retention

We retain your personal data only for as long as necessary to fulfil the purposes described in this policy:

Contact & feedback messages — retained for up to 2 years to handle follow-up queries and legal obligations.
Analytics data — anonymised; retained for up to 14 months before automatic deletion.
Server logs — retained for up to 90 days for security monitoring.

After the applicable retention period, your data is securely deleted or anonymised.

Section 07

Your Rights

Depending on your location, you have the following rights regarding your personal data:

Right to access — request a copy of the personal data we hold about you.
Right to rectification — ask us to correct inaccurate or incomplete data.
Right to erasure — request deletion of your personal data ("right to be forgotten").
Right to restriction — ask us to limit how we process your data.
Right to data portability — receive your data in a structured, machine-readable format.
Right to object — object to processing based on legitimate interests.
Right to withdraw consent — unsubscribe from emails or withdraw any previously given consent at any time.
Right to lodge a complaint — contact your local data protection authority if you believe your rights have been violated.

To exercise any of these rights, email us at privacy@nextantennas.com. We will respond within 30 days.

Section 08

Data Security

We implement appropriate technical and organisational measures to protect your personal data against unauthorised access, loss, or misuse:

HTTPS encryption — all data transmitted between your browser and our servers is encrypted using TLS 1.2 or higher.
Access controls — personal data is accessible only to authorised team members who need it to perform their role.
No storage of sensitive data — we do not store payment card numbers, government IDs, or passwords.
Regular security reviews — our infrastructure and practices are reviewed periodically.

While we take these precautions seriously, no transmission over the internet can be guaranteed 100% secure. If you have security concerns, please contact us immediately at privacy@nextantennas.com.

Section 09

Children's Privacy

Our website and educational resources are intended for individuals aged 16 and over. Younger students are welcome to use the content with parental guidance. We do not knowingly collect personal data from children under 16. If you believe a child has provided us with personal information, please contact us at privacy@nextantennas.com and we will delete it promptly.

Section 10

International Data Transfers

NEXT ANTENNAS is based in the United States. If you are accessing our website from the European Economic Area (EEA), United Kingdom, or other regions with data protection laws, your personal information may be transferred to and processed in countries that may not offer the same level of protection as your home jurisdiction.

Where we transfer data internationally, we rely on appropriate safeguards such as:

Standard Contractual Clauses (SCCs) approved by the European Commission.
Adequacy decisions where applicable.
Contractual data processing agreements with all service providers.

Section 11

Changes to This Policy

We may update this Privacy Policy from time to time to reflect changes in our practices, technology, or legal requirements. When we do:

The "Last updated" date at the top of this page will be revised.
If changes are material, we will notify registered email subscribers before they take effect.
Continued use of the website after the effective date constitutes your acceptance of the updated policy.

We encourage you to review this policy periodically.

Section 12

Contact Us

If you have any questions, concerns, or requests relating to this Privacy Policy or your personal data, please reach out to us:

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