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Your Professional Wideband Log-Periodic Antenna Supplier

 

Our goal is to be your reliable partner for wideband log-periodic antenna in China. COCENTRA Precision Technology (Jiangsu) Co., Ltd. is committed to providing high-quality connectors, cable assemblies, and antenna solutions to global customers. We have a skilled engineering team dedicated to refining every stage, from product development and process improvement to production oversight, ensuring every product delivered meets rigorous quality and performance standards. The price is competitive and the product is quality-assured, which is a good choice for your long-term cooperation.

 

 
 
Why choose us

Our certifications

We have obtained numerous international certifications, including ISO9001, ISO14001, IATF16949, and QC080000.

 

 

Production equipment

We utilize advanced production equipment, including wire-cut EDM machines, grinders, CNC machine tools, punching machines, injection molding machines, automated cable assembly machines, telecommunications connector automation equipment, and automotive connector automation equipment.

Customized solutions

We are committed to providing each customer with tailored solutions, whether for large-scale production or small-batch customization, to precisely meet their specific needs.

 

Our services

Our team of experts will recommend the most suitable products according to customer needs and provide detailed consultation, we ensure timely delivery, and we provide long-term service support.

 

Advantages of Wideband Log-Periodic Antenna
 

Wide bandwidth capability: One of the biggest advantages of a log-periodic antenna is its wide bandwidth. Unlike traditional antennas that operate efficiently only at specific frequencies, log-periodic designs cover a broad range.


Consistent gain and directivity: A log-periodic antenna maintains consistent gain and directivity across its entire frequency range. This is crucial for applications where signal strength and directionality are vital, such as in military communications or emergency response systems.


Compact and lightweight design: Despite covering a wide frequency range, log-periodic antennas are relatively compact and lightweight. Their design allows for efficient signal reception without the bulkiness of other high-performance antennas.

Dual Band Log-periodic Antenna For LTE 5G

 

Multi-band High Gain Log-periodic Antenna For LTE 5G

Directional performance with low interference: Log-periodic antennas are highly directional, meaning they focus signals in a specific direction while minimizing interference from unwanted sources.


Scalability for different applications: Another advantage of log-periodic antennas is their scalability. Engineers can adjust the size and element spacing to optimize performance for different frequency ranges.


Durability and weather resistance: Many log-periodic antennas are built with robust materials like aluminum or fiberglass, making them durable and weather-resistant. They perform reliably in harsh conditions, including heavy rain, strong winds, and extreme temperatures.


Efficient signal reception in high-frequency ranges: Log-periodic antennas excel in high-frequency applications, such as uhf and microwave transmissions. Their design minimizes signal loss, ensuring efficient reception even at higher frequencies.

 

Specification of Wideband Log-Periodic Antenna

 

 

Electrical Specifications

Item No.

DS698-3800X-9-60E

Frequency Range

MHz

698-960

1710-2700

3300-3800

Gain

DBi

8±0.5

9±0.5

10±0.5

Polarization

 

±45

Beam width

Horizontal

Deg

65±15

58±10

55±10

Vertical

60±15

55±10

50±10

 

VSWR

 

≤2.0

PIM, 3rd Order, 2 x 20W,

DBc

-150

Maximum input power

W

50

Lightning protection

 

DC Ground

Impedance

Ω

50

Mechanical Specification

Connector Type

 

2XN-female

Connector position

 

Bottom

Size

(mm)

260×500

Antenna Weight

kg

3.5

Rated wind velocity

m/s

36.9

Operational Temperature

oC

-40～55

Radome material

 

ABS, White, RAL9003

Mounting hardware

(mm)

φ35～φ60

 

 

Features of Wideband Log-Periodic Antenna

Consistent gain across frequencies: Log periodic antennas demonstrate remarkable consistency in gain performance across their operational frequency bands, a characteristic that sets them apart from many other antenna designs.


Stable radiation patterns: The stability of radiation patterns across frequencies represents one of the most valuable characteristics of log periodic antennas, particularly in applications requiring consistent directional performance. While most antenna designs experience significant pattern variations as frequency changes, log periodic antennas maintain remarkably stable directional characteristics throughout their operational bandwidth.


Impedance matching and vswr performance: Impedance matching and voltage standing wave ratio (vswr) performance are critical factors that distinguish log periodic antennas in achieving their exceptional wideband capabilities. Unlike many antenna designs that require complex matching networks to operate across multiple frequencies, log periodic antennas inherently maintain favorable impedance characteristics throughout their operational bandwidth.

Multi-band High Gain Log-periodic Antenna For LTE 5G

 

Types of Wideband Log-Periodic Antenna
 

Log periodic dipole array (lpda)

This is the most common type of log periodic antenna. As the name suggests, ldpa antennas have an array of dipole antenna elements arranged in increasing length and mounted along either side of a support boom.

Log-periodic monopole antenna

Log periodic monopole antennas are quite similar to lpdas. In this variation, monopoles are used instead of dipoles in the antennas and generally mounted on a conductive ground plane. This design has improved performance in terms of gain and is commonly used in ground-based communication systems.

Planar log-periodic antenna

This type of log periodic antenna has its antenna elements printed on a planar substrate similar to a pcb. Due to their compact design, they are ideal to be used in smaller devices with space limitations as well as for mobile applications. They are also commonly used in radar and microwave applications.

Wire log-periodic antenna

Similar to other log periodic antennas, wire log periodic antennas also have multiple antenna elements. However, instead of the typical solid elements, these antennas consist of antenna elements made using wires supported on a rigid frame or boom structure.

 

Application of Wideband Log-Periodic Antenna
 

Communications and broadcasting: Wideband log-periodic antenna find extensive use in broadcasting, both in radio and television. Their ability to cover a broad spectrum of frequencies makes them ideal for transmitting signals across various channels, ensuring widespread coverage in urban and remote areas alike.

 

Wireless networking and data transmission: In the realm of wireless networking, lpdas serve as reliable tools for data transmission in long-range communication systems. Their directional capabilities and frequency agility make them suitable for point-to-point communication in wi-fi, cellular networks, and other wireless technologies.

 

Aerospace and defense: Wideband log-periodic antenna are also employed in aerospace and defense applications, facilitating communication in aircraft, satellites, radar systems, and military equipment. Their durability, bandwidth, and directional characteristics make them invaluable in critical missions and surveillance operations.

 

 

Packing and Shipping of Wideband Log-Periodic Antenna

 

 

Packing

Box

Shipping

Shipped by road, sea, rail

 

 

FAQ

 

 

Q: How much bandwidth can a log‑periodic antenna cover?

A: Typically up to a 10:1 frequency range, making it suitable for multiple bands simultaneously.

Q: What is the bandwidth of log periodic antenna?

A: The bandwidth of the antenna, the frequency range over which it has near-maximum gain, is approximately between the resonant frequencies of the longest and shortest elements. Every element in the LPDA antenna is a driven element, that is, connected electrically to the feedline.

Q: What is a wideband antenna?

A: A wideband antenna is one with approximately or exactly the same operating characteristics over a very wide Passband. It is distinguished from broadband antennas, where the passband is large, but the antenna gain and/or radiation pattern need not stay the same over the passband.

Q: What is the difference between Yagi Uda and log periodic antenna?

A: A Yagi antenna operates in a very narrow frequency range with higher gain. It's a narrow-bandwidth antenna. An LPDA antenna operates in a wide frequency range with lower gain. It's a wide-bandwidth (or “wideband”) antenna.

Q: What is the bandwidth of a wideband antenna?

A: So, you must find fractional bandwidth (bandwidth/center frequency) and if it is greater than 15-20%, then you can call it as wideband. For ultra-wideband, an antenna must cover a frequency range of 3.1-10.3 GHz.

Q: How to improve antenna bandwidth?

A: Bandwidth of antenna can be increased by various methods such as by increasing the thickness of substrate with low dielectric constant, by probe feeding, by cutting slot, by cutting notches and by different shapes of antenna.

Q: What is a log periodic antenna used for?

A: Log periodic antennas are used for applications requiring a wide frequency range and consistent performance, such as TV and radio broadcasting, radar systems, wireless communications (including cellular signal boosting), and electromagnetic interference (EMI) and electromagnetic compatibility (EMC) testing.

We're professional wideband log-periodic antenna manufacturers and suppliers in China. If you're going to wholesale customized wideband log-periodic antenna, welcome to get quotation from our factory. For price consultation, contact us.

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