DOLPH NEWS
Dolph Microwave Designs And Manufactures For Precision Waveguide Components, Earth Station Antennas And Sub-Assemblies For Wireless, Satellite, Aerospace, Defence And Scientific Research

Ku-Band Satellite Antenna Selection | Weather Fade, High Throughput, Dish Size
Ku-band procurement should lock onto 1.2-meter antennas to reserve a 5dB rain fade margin. HTS requires LNBs with a 0.2dB low noise figure. Utilizing AGC

Flat Panel Satellite Antenna Technology | Metamaterials, Electronic Steering, LEO
Flat-panel satellite antennas utilize metamaterials for electronically controlled scanning, with a thickness of only 5cm and millisecond-level switching, perfectly adapted for LEO. Its ±60° wide-angle

Log Periodic Antenna Working Principle Explained | Broadband, Self-Similar Structure
Log-periodic antennas rely on self-similar structures to achieve extremely wideband coverage, such as from 30MHz to 3GHz. During fabrication, multiple dipoles must be arranged proportionally,

Log Periodic Antenna Design Guide | Frequency Range, Gain, Structure
Designing a log-periodic antenna requires first determining the coverage frequency band, with its operating frequency typically ranging between 30 MHz and 3 GHz. Its structure

Custom IoT Antenna Solutions | Power, Size, Connectivity
By precisely controlling return loss below -10dB, customized antennas significantly enhance signal transmission efficiency by 20% within a miniature size and effectively reduce system power

Custom 5G Antenna Solutions | High Bandwidth, MIMO, Latency
Leveraging our deep accumulation of RF technology, we provide customized 5G antenna solutions. By utilizing an advanced 4×4 MIMO architecture and supporting millimeter-wave (mmWave) bands,

Horn Antenna Gain Calculation Guide | Formula, Aperture Area, Efficiency
Horn antenna gain is determined by the aperture area, operating wavelength, and efficiency (typically taken as 0.6). The calculation formula is: 4π multiplied by the

Standard Gain Horn Antenna Selection Guide | Frequency, Gain, VSWR
Selection depends on matching the frequency (e.g., 2-40 GHz), ensuring gain error < ±0.5 dB and VSWR < 1.3. Understanding Frequency Each horn antenna corresponds

Flexible Waveguide Selection Guide | Size, Frequency, Bend Radius
Selection should be based on frequency to determine size, for example, WR-90 corresponds to 8.2-12.4 GHz; During installation, strictly control the E-plane static bend radius

Waveguide Conductive Gasket Selection Guide | Structure, Performance, Price
Waveguide conductive gaskets typically use silicone rubber filled with silver or nickel particles, with a standard thickness of about 0.69mm, capable of providing shielding effectiveness

Design of Conductive Elastomer Waveguide Gaskets | Function, Material, Manufacturing Process
Function: Achieve waveguide sealing and electromagnetic shielding (X-band 8-12GHz, shielding effectiveness ≥60dB). Material: Silicone rubber matrix + 3-5wt% carbon nanotubes (CNT), tensile strength ≥5MPa. Process:

How to Test Broadband Waveguide Antenna Performance
Test broadband waveguide antennas via VNA calibrated with WR-90 standards, measuring S11 (<-10dB) from 26.5-40GHz. In far-field (15λ away), compare with a reference antenna to

Why Choose Waveguide Components for EMC
Waveguide components enhance EMC with ultra-low insertion loss (<0.2dB at 10GHz) and robust shielding; precision-machined metal walls (roughness <0.8μm) suppress leakage, confining signals via mode

How to Install Open Ended Waveguides in Indoor Satellites
Align open-ended waveguides via laser tools (±0.1mm accuracy), seal flanges with 0.5mm silicone gel, torque bolts to 5N·m, then test VSWR (<1.2) to ensure indoor

What Causes Waveguide Transfer Switch Failures
Waveguide transfer switch failures often stem from mechanical wear (spring fingers fatigue after 10k+ cycles), >10μm particle contamination blocking signal paths, or thermal misalignment—aluminum alloy

How to Maintain Open Ended Waveguide Probes
Maintain open-ended waveguides by wiping probes with isopropyl alcohol on lint-free cloths, inspecting tips for corrosion/bends, and quarterly calibrating (insertion loss ≤0.5dB) to prevent signal

What Are Broadband Omni Waveguide Antennas For
Broadband omni waveguide antennas serve multi-directional, wide-frequency comms—e.g., covering 2-18GHz, they enable base stations/ radar to radiate uniformly, handling signals from Wi-Fi to satellite links

Why Are Log Periodic Waveguide Antennas Popular
Log periodic waveguide antennas thrive due to ultra-wide bandwidth (e.g., 100MHz–40GHz), stable gain (10–15dBi), and low VSWR (<1.8); ideal for 5G/multi-band systems, they maintain directionality

How to Select Sinuous Waveguide Antennas for 5G
Select 5G sinuous waveguide antennas targeting n41/n78 bands (3.3-5GHz), aiming for 15-20dBi gain; ensure ≥800MHz bandwidth and VSWR<1.5 (via HFSS simulation). Choose linear/circular polarization per

How to Connect Waveguide to SMA Adapter Properly
Align waveguide flange with SMA adapter’s, ensuring mode (TE10) and impedance match. Tighten mounting screws to 8-10 N·m torque; test with VNA—target VSWR <1.2 at

Why Use Waveguide Components in Millimeter Wave Systems
Waveguides dominate mm-wave (26-100GHz) systems: their low loss (<0.1dB/m at 60GHz for rectangular types) beats microstrip, while high power handling (10s of W) suits radar/5G;