Telecom
Choosing the Optimal Base Station Antennas
Opinion by Bo Jonsson, and Torbjörn Kämpe
The choice of antennas for base stations rarely receives any attention. Antennas are regarded as a cheap commodity that will “do its job” regardless of which antenna you choose.
Nothing could be further from the truth. Antennas have a tremendous impact on coverage, performance, capacity and efficiency, and choosing the right ones can make or break a mobile operator’s ability to cope with the rapidly increasing demand for data.
Looking at the installed base, one could get the impression that the obvious, or even optimal, choice for almost all sites would be the traditional 18 dBi antenna.
This antenna has 65° of horizontal beamwidth and around 6.5° of vertical beam width, as do about 80 percent of all installations on 1,700 to 2,100 MHz.
The 15 dBi antenna is still quite common, especially on the lower frequencies, with a vertical beam width of around 14°.
There are also high gain 21 dBi antennas and new so-called ultra high-efficiency antennas using air as dielectric and virtually eliminating power losses.
These antennas improve base stations’ transmission capacity, resulting in higher signal strength, an increase in geographical area coverage, improved indoor penetration, increased traffic, improved data throughput and reduced production costs per call.
One newly launched multiband antenna (by Swedish manufacturer CellMax Technologies) offers 21 dBi radiated power on the high band with 4° of vertical beam.
18 dBi antenna is chosen for historical reasons, not with forethought
How much forethought is behind the choice of 18 dBi antennas? The decision to use this antenna comes down to historical reasons.
The 18 dBi antenna was the highest gain available from antenna vendors able to deliver antennas in mass quantities, and was such an obvious choice that it became almost a de facto standard and installed almost without a second thought.
This was of course not without reasons; it was a good compromise and has served us all very well.
But the 18 dBi antenna does not deliver the highest gain anymore – high gain ultra high-efficiency antennas do.
The 18 dBi antenna was also always questioned both for its narrow vertical beam width and also its horizontal beam width of “only” 65°.
With data surpassing voice in new 3G and 4G mobile networks, interference is different and so must the antennas be to stay effective.
Most sectors would benefit significantly from an antenna with higher gain and a sharper upper roll-off curve than the standard 18 dBi can offer.
The choice of antenna depends on the individual situation
So what is the optimum antenna for all installations? The answer to this question is: “there is no such thing as an optimum antenna for all installations!”
It always depends on the situation. If there is a tall building nearby, a small antenna with lower gain like 15 dBi would do a good job. At a rural site with maximum coverage as the most important objective, a 21 dBi antenna is clearly the best option.
At suburban sites the focus shifts towards capacity, suppression of interference and less on coverage. In can be seen that a high gain antenna will provide a 3.5 dB stronger signal level in the center of the cell, and suppress interference from next cell better than the 18 dBi antenna.
The 3.5 dB extra will improve in-building coverage and data transfer speed. Also, the lower interference will improve C/I and further improve performance.
A high carrier-to-interference ratio (C/I) is the key parameter for efficiency, data rate and general success. So a high gain high efficiency antenna is again the best choice.
What about dense urban sites? After all, that is where most antennas are installed and the requirement is here to contain the signal within the cell while at the same time provide a very strong signal for good in-building penetration and high C/I for high speed data transfer.
Simulations and real-life tests show that there is a very sharp “cut off” at 650 meters from the high gain antenna at 6° tilt.
This will provide a significant reduction of interference and a magnificent control of soft handover load.
There is a remarkable difference between 5.5° and 6° which proves that antenna tilt is crucial to performance, and that antenna tilt setting is a precision job where a scale on a tilt bracket is far from accurate enough.
The high gain antenna still outperforms the 18 dBi antenna in dense urban sites and the sharper upper roll off is the main asset, actually even more important than the stronger signal level.
Going further in tilt it can be seen that the high gain antenna provides a stunning 5.5 dB stronger signal and even more in interference rejection from outside 450 meters.
That does wonders for soft handover overhead and data transfer speed. So again a clear win for the 21 dBi high gain antenna with very sharp upper roll off.
High gain, high efficiency the way to go
So in summary and if we generalize a bit, we can see that the 21 dBi antenna is a better choice in surprisingly many situations, for much the same reason as the 18 dBi antenna once replaced earlier antennas with lower gain.
They very often offer significant improvements to the traditional 18 dBi antennas. But they have a significantly more complex feeding network so the efficiency becomes a very important parameter.
After all, to extend and improve coverage requires more radiated radio frequency power, not less. So look not only for a high gain antenna, but also for a high efficiency antenna!
Bo Jonsson is senior Radio Frequency Expert, CellMax Technologies and Torbjörn Kämpe, is CEO, CellMax Technologies
Telecom
Relief for SMEs as NACAN Launches Fight Against Expensive Broadband in Nigeria

A new non-profit advocacy group, the National Affordable Connectivity Advocacy Network (NACAN), has launched initiatives aimed at addressing broadband affordability challenges and promoting policy reforms for small and medium-sized enterprises (SMEs) in Nigeria.

Broadband
The launch coincided with the 2026 edition of the International Telecommunication Union (ITU) World Telecommunication and Information Society Day (WTISD), themed: “Digital lifelines: Strengthening resilience in a connected world.”
NACAN said its primary objective is to bridge digital access gaps affecting Nigerian SMEs by reducing broadband costs, advocating regulatory reforms and improving digital capacity for small businesses.
As part of its rollout plans, the organisation unveiled the Southern Connectivity Voucher Pilot, a programme designed to provide subsidised data vouchers to small businesses in major commercial centres in southern Nigeria.
According to the group, the intervention is expected to reduce internet-related operational costs for businesses and improve digital access.
NACAN also announced plans to host the Niger Delta Digital Lifelines Roundtable in Port Harcourt, bringing together state ICT commissioners, internet service providers, telecom stakeholders and civil society groups.
The forum is expected to focus on strengthening resilient last-mile broadband infrastructure across underserved communities.
Speaking at the launch, National Coordinator of NACAN, Uchechukwu Emmanuel Ugochukwu, said internet access had become critical infrastructure for Nigerian businesses.
“In the current economic climate, internet access is no longer a luxury for Nigerian businesses; it is an infrastructure lifeline.
“We are debuting to ensure that high data costs and weak network reliability do not permanently exclude Nigerian SMEs from the global digital economy,” he said.
The organisation also unveiled a policy advocacy agenda targeting reforms on Right-of-Way charges and measures to reduce frequent network outages affecting businesses.
To deepen stakeholder engagement, NACAN said it is collaborating with industry groups including the Nigeria Information Technology Reporters Association (NITRA), the Niger Delta Chamber of Commerce, Industry, Mines and Agriculture (NDCCIMA), and the APC ICT Directorate, alongside private sector partners.
NACAN described itself as a non-profit initiative focused on promoting digital equity for Nigerian SMEs through advocacy for affordable, reliable and secure broadband infrastructure.
The group said its long-term goal is to support the integration of local businesses into the formal digital economy and stimulate inclusive economic growth.
Telecom
GBB Says Cross-border Partnerships Key to Africa’s Digital Transformation

Galaxy Backbone Limited (GBB) has said that sustained collaboration among African countries remains central to the continent’s drive toward digital transformation.

The organisation stressed that building secure, interoperable and inclusive digital systems across Africa cannot be achieved in isolation, calling for stronger regional partnerships to accelerate innovation and shared infrastructure development.
The position was contained in a statement issued on Sunday by the Head of Corporate Communications at Galaxy Backbone, Chidi Okpala.
As it prepares to host a major delegation of policymakers, technology leaders and development partners in Abuja, GBB said the engagement would further highlight the importance of cross-border cooperation in shaping Africa’s digital future.
Okpala explained that the initiative is designed to provide both dialogue and practical exposure to Nigeria’s digital infrastructure ecosystem.
According to him, the visit will allow delegates to better understand how shared ICT systems are supporting governance and service delivery in the country.
“This engagement will provide an opportunity for African stakeholders to not only discuss policy frameworks but also see firsthand how digital public infrastructure is being deployed to improve efficiency, connectivity and innovation in the public sector,” Okpala said.
He added that GBB’s hosting role reflects its growing importance in advancing digital governance and infrastructure development across the continent.
“Galaxy Backbone is increasingly positioned as a key enabler of trusted digital infrastructure, and this engagement reinforces that role within Nigeria and beyond,” he noted.
Speaking ahead of the programme, the Managing Director and Chief Executive Officer of Galaxy Backbone, Professor Ibrahim Adeyanju, said the future of Africa’s digital economy depends on the ability of countries to work together in building resilient systems.
“No single country can achieve the level of transformation required on its own. We must share knowledge, align strategies, and invest in systems that can serve the entire continent,” Adeyanju said.
According to the statement, the engagement will feature a continental dialogue themed “Building Africa’s Digital Foundations Together,” bringing together stakeholders from 11 African countries in Abuja.
The programme is being organised in partnership with Co-Develop, Smart Africa, and MicroSave Consulting, with discussions expected to focus on Digital Public Infrastructure (DPI), digital identity systems, secure connectivity, interoperability frameworks, and inclusive digital ecosystems.
GBB said delegates will also undertake a guided tour of its infrastructure and facilities in Abuja, where they will be exposed to Nigeria’s digital transformation journey and the systems supporting cloud services, cybersecurity, government connectivity, and digital platforms.
The company noted that the tour is intended to demonstrate how shared ICT infrastructure is strengthening governance and enabling more efficient public service delivery.
Participants are expected to explore practical pathways for accelerating the deployment of digital public infrastructure to support economic growth and institutional reforms across Africa.
GBB maintained that the initiative also confirms Nigeria’s position as a regional hub for digital innovation and infrastructure development, while deepening cooperation among African nations.
Telecom
MTN Reinforces Commitment to African Creativity at Star-Studded 12th AMVCA

MTN Nigeria reinforced its commitment to supporting African storytelling and emerging creative talent at the 12th Africa Magic Viewers’ Choice Awards (AMVCA), held on Saturday, May 9, 2026, at Eko Hotels & Suites.

MTN Nigeria
Hosted by Bovi Ugboma and Nomzamo Mbatha, the star-studded event brought together some of the biggest names in African film, television, and entertainment for a night celebrating creativity, culture, and cinematic excellence.
As part of its participation at the Awards Night, MTN Nigeria sponsored the Best Short Film category, one of the standout moments of the evening aimed at recognising and rewarding emerging filmmakers shaping the future of African storytelling.
The award was presented by the General Manager, Enterprise Sales, MTN Nigeria, Febisola Oyeleye, alongside actor Jide Oyegbile.
The winning film, Hussaini, by filmmakers Orire Nwani and Josh Olaoluwa, earned both the prestigious AMVCA recognition and a ₦5 million cash prize sponsored by MTN Nigeria.
Speaking during the presentation of the cash prize to the winners, Chief Marketing Officer, MTN Nigeria, Onyinye Ikenna-Emeka, reiterated MTN’s commitment to youth empowerment and supporting the creative industry through platforms that spotlight emerging talent.
According to her, the brand remains intentional about supporting young Nigerians who continue to push boundaries through creativity and storytelling. “At MTN, one of the things that we are so committed to is youth empowerment.
We believe that the youth of Nigeria are actually the future of the country. When we see young people being productive and coming out tops in what they do, it speaks to their commitment and ability to move beyond boundaries.
One of the ways we support the creative industry is through the short film category, and we are delighted to see deserving winners who are obviously on their way to great things,” she said.
The filmmakers behind Hussaini also celebrated the win, with one of the creators describing it as a defining moment after multiple nominations in the category.
“This is our last nomination in this category, and I’m excited we finally have it,” he said. “Next year, we are coming for Best Feature Film.”
Beyond the Awards Night, MTN’s presence throughout the AMVCA week extended to initiatives such as Young Filmmakers Day and the #MTNFilmChallenge, both designed to spotlight emerging talent and create opportunities for young creatives to tell authentic Nigerian and African stories through film and digital content.
With its continued investment in platforms that celebrate creativity and empower young storytellers, MTN Nigeria once again highlighted the important role partnerships can play in shaping the future of Africa’s entertainment industry.
General News2 days agoXenophobic Attacks: Anonymous Nigeria Threatens to Leak South African Stolen Data
Telecom2 days agoMTN Targets 8m Homes in Fibre Expansion Drive
E-Financial2 days agoChapel Hill Denham Says Banks Lose N2.5 Trillion Annually to High CRR in New Report
Telecom2 days agoGBB Says Cross-border Partnerships Key to Africa’s Digital Transformation
E-Financial2 days agoLagos Sanctions 15 Money Lending Firms for Operational Violations
E-Financial2 days agoAfDB Approves $200m for BoI to Support MSMEs
News2 days agoWHO Says Ebola Outbreak Worse than Reported
News2 days agoDigital PayExpo 2026 to Convene Africa’s Most Influential Payments Leaders in Lagos













