Buy vs Rent: We recommend you Buy
This compares the total cost of owning the book (cheapest buy price minus the best sell-back offer today) with the cheapest rental.
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Disclaimer: These calculations are based on the current advertised price. Your results will vary depending on several factors, including the condition of the book and the advertised price at the time of sale.
| Store | Condition | Coupons & Deals | Price | Shipping | Total | |
|---|---|---|---|---|---|---|
| eCampus 150 Day eBook (expires 03/19/2027) |
150 Day eBook (expires 03/19/2027) |
$94.80 as of Oct 19, 2026, 8:25 PM ET |
FREE | |||
| eCampus (Marketplace) Used (Marketplace) |
Used (Marketplace) |
$146.30 as of Oct 19, 2026, 8:25 PM ET |
$3.97 | |||
| eCampus Short Term Rental (60 days, due 12/19/2026) |
Short Term Rental (60 days, due 12/19/2026) |
$147.95 as of Oct 19, 2026, 8:25 PM ET |
$3.97 | |||
| eCampus Quarter Rental (60 days, due 12/19/2026) |
Quarter Rental (60 days, due 12/19/2026) |
$156.17 as of Oct 19, 2026, 8:25 PM ET |
$3.97 | |||
| eCampus Semester Rental (77 days, due 01/05/2027) |
Semester Rental (77 days, due 01/05/2027) |
$164.39 as of Oct 19, 2026, 8:25 PM ET |
$3.97 | |||
| eCampus New |
New | $273.72 as of Oct 19, 2026, 8:25 PM ET |
FREE | |||
| Store | Condition | Coupons & Deals | Price | Shipping | Total | |
|---|---|---|---|---|---|---|
| eCampus (Marketplace) Used (Marketplace) |
Used (Marketplace) |
$146.30 as of Oct 19, 2026, 8:25 PM ET |
$3.97 | |||
| Store | Condition | Coupons & Deals | Price | Shipping | Total | |
|---|---|---|---|---|---|---|
| eCampus New |
New | $273.72 as of Oct 19, 2026, 8:25 PM ET |
FREE | |||
| Store | Condition | Coupons & Deals | Price | Shipping | Total | |
|---|---|---|---|---|---|---|
| eCampus Semester Rental (77 days, due 01/05/2027) |
Semester Rental (77 days, due 01/05/2027) |
$164.39 as of Oct 19, 2026, 8:25 PM ET |
$3.97 | |||
| Store | Condition | Coupons & Deals | Price | Shipping | Total | |
|---|---|---|---|---|---|---|
| eCampus Quarter Rental (60 days, due 12/19/2026) |
Quarter Rental (60 days, due 12/19/2026) |
$156.17 as of Oct 19, 2026, 8:25 PM ET |
$3.97 | |||
| Store | Condition | Coupons & Deals | Price | Shipping | Total | |
|---|---|---|---|---|---|---|
| eCampus Short Term Rental (60 days, due 12/19/2026) |
Short Term Rental (60 days, due 12/19/2026) |
$147.95 as of Oct 19, 2026, 8:25 PM ET |
$3.97 | |||
| Store | Condition | Coupons & Deals | Price | Shipping | Total | |
|---|---|---|---|---|---|---|
| eCampus 150 Day eBook (expires 03/19/2027) |
150 Day eBook (expires 03/19/2027) |
$94.80 as of Oct 19, 2026, 8:25 PM ET |
FREE | |||
| Store | Condition | Payment Type | Offer | |
|---|---|---|---|---|
| eCampus Sell Back |
Sell Back | Check | ||
Prices checked Oct 19, 2026, 8:25 PM ET. Totals include shipping where the store lists it.
Also check: Knetbooks (rentals) · BiggerBooks · VitalSource (eBooks) · AbeBooks (marketplace) · SellBackBooks (sell back)
Pozar's new edition of Microwave Engineering includes more material on active circuits, noise, nonlinear effects, and wireless systems. Chapters on noise and nonlinear distortion, and active devices have been added along with the coverage of noise and more material on intermodulation distortion and related nonlinear effects. On active devices, there's more updated material on bipolar junction and field effect transistors. New and updated material on wireless communications systems, including link budget, link margin, digital modulation methods, and bit error rates is also part of the new edition. Other new material includes a section on transients on transmission lines, the theory of power…
When you open this page we ask eCampus, Knetbooks, BiggerBooks and VitalSource for their current prices on ISBN 9780470631553 and sort every offer by its total with shipping. Rental rows show the term (semester, quarter or short term) and that term goes with you to the store's cart, and eBook rows link straight to the 180-day or no-expiry option you picked. Prices are rechecked at least every 30 minutes, so confirm the total at checkout.
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