YIG Filters | Teledyne Microwave Solutions

Skip Navigation Links Home Companies Microwave Microwave Solutions - RF&M Products Yig Products YIG Filters

TMS YIG Filters

All YIG Filters

97 products found Show per page

Product Line↕	Series / Stage Type↕	Tuning Range (GHz)↕	Part Number↕	Product Name↕	Description	More Information

No products match the selected filters.

Features

Tunable band-pass filters covering approximately 0.5 to 40 GHz with up to seven stages for high selectivity.
Advanced band-reject filters with tuning ranges such as 0.5–3, 2–6, and 2–20 GHz, providing deep notches and wide 40 dB rejection bandwidths.
Patented Super-Notch shunt resonator architectures achieving 40 dB rejection bandwidths as narrow as 6–30 MHz.
Proprietary coupling loop technology to control bandwidth growth, improve VSWR, and suppress spurious responses across the tuning range.
Options for 2-, 4-, and up to 7-stage band-pass filters and up to 16-stage band-reject filters, including dual-channel configurations.
Temperature-compensated magnets, moisture-sealed structures, and MIL-qualified options for harsh defense environments.

Benefits

Provides agile, electronically tuned preselection and notching, reducing the need for large switched filter banks.
Improves image rejection and spurious suppression, enhancing receiver sensitivity and dynamic range in dense RF environments.
Enables surgical removal of high-power interferers while preserving adjacent channels and wide instantaneous bandwidth.
Reduces SWaP and complexity compared to multiple fixed filters, especially in wideband EW and surveillance systems.
Delivers predictable performance and manufacturability using mature, modeled coupling and shunt resonator techniques.
Supports both commercial and MIL temperature and environmental requirements, increasing deployment flexibility.

Applications

Radar warning receivers, ELINT, and ESM systems requiring tunable preselection and interference notching.
ECM and EW receivers needing agile, deep notches for jammer and co-site interference suppression.
Wideband surveillance and SIGINT systems operating from roughly 0.5 to 20 GHz.
Spectrum analyzers and tracking preselectors for RF and microwave test equipment.
RF source clean-up and spurious reduction in synthesizers and sweepers.
Co-site interference mitigation and link protection for radar, SATCOM, and communications nodes.

Specifications

Frequency coverage: YIG filters span approximately 0.5–40 GHz for band-pass filters and 0.5–20 GHz for band-reject and Super-Notch devices, with single units often covering multi-octave ranges.
Band-pass filters: Up to seven stages providing steep skirts and high isolation, with typical 3 dB bandwidths from tens of MHz to several hundred MHz depending on frequency and design.
Band-reject filters (standard): Advanced 4–18 GHz tuning ranges, 40 dB rejection bandwidths from tens to over 100 MHz, and deep multi-stage notches in compact, rugged packages.
Super-Notch filters: Models such as F3874, F3875, and F4002 provide 40 dB rejection bandwidths of about 6 MHz (0.5–3 GHz), 30 MHz (2–6 GHz), and 22 MHz (2–20 GHz) with 3 dB notch bandwidths around 50–160 MHz.
Insertion loss and VSWR: Typical passband insertion loss for Super-Notch filters is around 1.5–1.9 dB, with return loss and VSWR controlled by careful coupling design to minimize mismatch and ripple.
Stages and configurations: YIG band-pass filters use 2-, 4-, and 7-stage resonator structures, while band-reject filters can employ up to 16 stages, including dual-channel designs for multi-channel receivers.

Teledyne Microwave Solutions offers a comprehensive portfolio of YIG-tuned band-pass and band-reject filters that provide electronically tunable, high-Q preselection and notching for wideband microwave receivers and test systems. These YIG filters exploit the linear relationship between YIG sphere resonance and magnetic field to deliver octave and multi-octave tuning, low insertion loss, steep skirts, and high out-of-band isolation across frequency ranges that can extend from roughly 0.5 GHz to nearly 40 GHz in band-pass implementations and from about 125 MHz to 18–20 GHz in band-reject designs. [web:42][web:84][web:86][web:103]

YIG band-pass filters act as agile preselectors, providing tunable passbands with 3 dB bandwidths from tens of megahertz to hundreds of megahertz depending on frequency and resonator count, and are widely used ahead of mixers and IF strips in EW, radar warning, ELINT, spectrum analyzers, and RF test equipment to improve image rejection and spurious suppression. Multi-stage resonator topologies (for example 2-, 4-, or 7-stage designs) and carefully optimized coupling loops allow engineers to trade off insertion loss versus selectivity while controlling bandwidth growth and maintaining good VSWR and low spurious responses over the tuning range. [web:42][web:84][web:86][web:103]

YIG band-reject filters (BRFs) provide tunable, deep notches that remove narrow or wide interfering signals while preserving the rest of the band, with Teledyne’s “Advanced Technology” BRFs delivering unprecedented performance across 125 MHz to 18 GHz and higher. These advanced BRFs increase minimum 40 dB rejection bandwidths and notch depth at lower frequencies, reduce maximum 3 dB bandwidths at higher frequencies, and significantly lower spurious responses, allowing design engineers to achieve the previously difficult combination of deeper, wider low-frequency notches, narrower high-end 3 dB bandwidths, and cleaner skirts in a single tunable solution. [web:42][web:102][web:24][web:90][web:103]

For the most demanding EW and ECM applications, Super Notch YIG band-reject filters use patented shunt YIG resonator technology to realize ultra-narrow 40 dB rejection bandwidths—as low as single-digit to tens of megahertz—while maintaining low insertion loss, steep skirts, and suppressed tracking spurs over bands from approximately 0.5 to 20 GHz. This approach provides a new way to tune notch width and depth by combining series and shunt stages, reducing spur levels and stabilizing notch shape so that performance approaches that of an ideal tunable notch filter, especially at lower frequencies where traditional series-only YIG filters struggle. [web:18][web:24][web:90][web:102][web:103]

Across the product line, Teledyne’s YIG filters are specified using key RF, magnet, power, and environmental parameters, including center frequency range, 3 dB and 40 dB bandwidth, insertion loss, rejection, return loss, power handling, coil sensitivities, current and voltage requirements, and operating temperature, as highlighted in Teledyne’s YIG Filters & Oscillators and Filter Facts brochures. Engineers searching for solutions under terms such as YIG band-pass filter, YIG band-reject filter, tunable band-pass, tunable notch filter, YIG preselector, YIG tracking filter, wideband YIG filter, Advanced Technology BRF, and Supernotch YIG filter will find that these products offer the combination of tunability, selectivity, and dynamic range performance needed in modern EW, radar, communications, and RF test architectures. [web:42][web:84][web:88][web:102][web:103]

FAQs

1. What types of YIG filters does Teledyne offer?

Teledyne offers tunable YIG band-pass filters, advanced band-reject filters, and Supernotch filters based on shunt resonator technology, covering approximately 0.5 to 40 GHz across the portfolio.

2. What is the difference between band-pass, band-reject, and Supernotch YIG filters?

Band-pass filters provide tunable passbands for preselection, band-reject filters provide deep, tunable notches with relatively wide 40 dB bandwidths, and Supernotch filters deliver ultra-narrow 40 dB rejection bandwidths using patented shunt resonator structures.

3. What frequency ranges do Teledyne YIG filters cover?

Teledyne’s YIG band-pass filters span roughly 0.5–40 GHz with multi-octave coverage, while band-reject and Supernotch filters address notch ranges from about 0.5–3 GHz up through 2–20 GHz, depending on model.

4. How narrow can the Supernotch filter rejection bandwidth be?

Supernotch filters achieve 40 dB rejection bandwidths as narrow as approximately 6 MHz for the 0.5–3 GHz model and around 22–30 MHz for higher-band devices, while maintaining low insertion loss and practical 3 dB notch widths.

5. How do YIG band-reject filters compare with switched filter banks?

YIG band-reject filters provide a continuously tunable notch over a wide frequency range, avoiding the insertion loss and complexity of multiple switched fixed filters while offering agile, software-controlled interference mitigation.

6. What role does coupling loop technology play in Teledyne YIG filters?

Proprietary coupling loop technology controls external bandwidth and coupling versus frequency, reducing bandwidth growth, improving VSWR, and suppressing spurious responses, which are critical for high-performance band-pass and band-reject filters.

7. Are these filters suitable for harsh military environments?

Yes, Teledyne YIG filters are available with temperature-compensated magnets, moisture-sealed structures, and MIL-qualified screening for shock, vibration, and wide operating temperature ranges.

8. Can Teledyne customise YIG filter characteristics for a specific programme?

Teledyne can tailor tuning ranges, bandwidths, notch depths, stage counts, packaging, and control interfaces to meet programme-specific EW, radar, and communications requirements.

9. How are YIG filters typically controlled in a system?

YIG filters are tuned via coil current from analog or digital drivers; Teledyne provides filters alone or with integrated drivers supporting analog control voltages or digital/serial interfaces.

10. When should I select a Supernotch filter instead of a standard band-reject filter?

Choose a Supernotch filter when you need very narrow 40 dB rejection bandwidths and deep notches to surgically remove specific interferers while preserving adjacent spectrum; use standard band-reject filters when wider notches are acceptable.